• python 数据类型

时间：2017-08-05 13:29:18      阅读：2871      评论：0      收藏：0      [点我收藏+]
原文：http://www.cnblogs.com/xkkj/p/7289814.html

1、数字

int（整型）

在32位机器上，整数的位数为32位，取值范围为-2**31～2**31-1，即-2147483648～2147483647
在64位系统上，整数的位数为64位，取值范围为-2**63～2**63-1，即-9223372036854775808～922337203685477580
功能有哪些?
```#!/usr/bin/env python
# -*- coding:utf-8 -*-
name_list = 19
print type(name_list) #输出变量类型
print dir(name_list)   #列出方法
print id(name_list)　　　#显示变量在内存的位置```  ```  1 class int(object):
2     """
3     int(x=0) -> int or long
4     int(x, base=10) -> int or long
5
6     Convert a number or string to an integer, or return 0 if no arguments
7     are given.  If x is floating point, the conversion truncates towards zero.
8     If x is outside the integer range, the function returns a long instead.
9
10     If x is not a number or if base is given, then x must be a string or
11     Unicode object representing an integer literal in the given base.  The
12     literal can be preceded by ‘+‘ or ‘-‘ and be surrounded by whitespace.
13     The base defaults to 10.  Valid bases are 0 and 2-36.  Base 0 means to
14     interpret the base from the string as an integer literal.
15     >>> int(‘0b100‘, base=0)
16     """
17     def bit_length(self):
18         """ 返回表示该数字的时占用的最少位数 """
19         """
20         int.bit_length() -> int
21
22         Number of bits necessary to represent self in binary.
23         >>> bin(37)
24         ‘0b100101‘
25         >>> (37).bit_length()
26         """
27         return 0
28
29     def conjugate(self, *args, **kwargs): # real signature unknown
30         """ 返回该复数的共轭复数 """
31         """ Returns self, the complex conjugate of any int. """
32         pass
33
34     def __abs__(self):
35         """ 返回绝对值 """
36         """ x.__abs__() <==> abs(x) """
37         pass
38
40         """ x.__add__(y) <==> x+y """
41         pass
42
43     def __and__(self, y):
44         """ x.__and__(y) <==> x&y """
45         pass
46
47     def __cmp__(self, y):
48         """ 比较两个数大小 """
49         """ x.__cmp__(y) <==> cmp(x,y) """
50         pass
51
52     def __coerce__(self, y):
53         """ 强制生成一个元组 """
54         """ x.__coerce__(y) <==> coerce(x, y) """
55         pass
56
57     def __divmod__(self, y):
58         """ 相除，得到商和余数组成的元组 """
59         """ x.__divmod__(y) <==> divmod(x, y) """
60         pass
61
62     def __div__(self, y):
63         """ x.__div__(y) <==> x/y """
64         pass
65
66     def __float__(self):
67         """ 转换为浮点类型 """
68         """ x.__float__() <==> float(x) """
69         pass
70
71     def __floordiv__(self, y):
72         """ x.__floordiv__(y) <==> x//y """
73         pass
74
75     def __format__(self, *args, **kwargs): # real signature unknown
76         pass
77
78     def __getattribute__(self, name):
79         """ x.__getattribute__(‘name‘) <==> x.name """
80         pass
81
82     def __getnewargs__(self, *args, **kwargs): # real signature unknown
83         """ 内部调用 __new__方法或创建对象时传入参数使用 """
84         pass
85
86     def __hash__(self):
87         """如果对象object为哈希表类型，返回对象object的哈希值。哈希值为整数。在字典查找中，哈希值用于快速比较字典的键。两个数值如果相等，则哈希值也相等。"""
88         """ x.__hash__() <==> hash(x) """
89         pass
90
91     def __hex__(self):
92         """ 返回当前数的 十六进制 表示 """
93         """ x.__hex__() <==> hex(x) """
94         pass
95
96     def __index__(self):
97         """ 用于切片，数字无意义 """
98         """ x[y:z] <==> x[y.__index__():z.__index__()] """
99         pass
100
101     def __init__(self, x, base=10): # known special case of int.__init__
102         """ 构造方法，执行 x = 123 或 x = int(10) 时，自动调用，暂时忽略 """
103         """
104         int(x=0) -> int or long
105         int(x, base=10) -> int or long
106
107         Convert a number or string to an integer, or return 0 if no arguments
108         are given.  If x is floating point, the conversion truncates towards zero.
109         If x is outside the integer range, the function returns a long instead.
110
111         If x is not a number or if base is given, then x must be a string or
112         Unicode object representing an integer literal in the given base.  The
113         literal can be preceded by ‘+‘ or ‘-‘ and be surrounded by whitespace.
114         The base defaults to 10.  Valid bases are 0 and 2-36.  Base 0 means to
115         interpret the base from the string as an integer literal.
116         >>> int(‘0b100‘, base=0)
117         # (copied from class doc)
118         """
119         pass
120
121     def __int__(self):
122         """ 转换为整数 """
123         """ x.__int__() <==> int(x) """
124         pass
125
126     def __invert__(self):
127         """ x.__invert__() <==> ~x """
128         pass
129
130     def __long__(self):
131         """ 转换为长整数 """
132         """ x.__long__() <==> long(x) """
133         pass
134
135     def __lshift__(self, y):
136         """ x.__lshift__(y) <==> x<<y """
137         pass
138
139     def __mod__(self, y):
140         """ x.__mod__(y) <==> x%y """
141         pass
142
143     def __mul__(self, y):
144         """ x.__mul__(y) <==> x*y """
145         pass
146
147     def __neg__(self):
148         """ x.__neg__() <==> -x """
149         pass
150
151     @staticmethod # known case of __new__
152     def __new__(S, *more):
153         """ T.__new__(S, ...) -> a new object with type S, a subtype of T """
154         pass
155
156     def __nonzero__(self):
157         """ x.__nonzero__() <==> x != 0 """
158         pass
159
160     def __oct__(self):
161         """ 返回改值的 八进制 表示 """
162         """ x.__oct__() <==> oct(x) """
163         pass
164
165     def __or__(self, y):
166         """ x.__or__(y) <==> x|y """
167         pass
168
169     def __pos__(self):
170         """ x.__pos__() <==> +x """
171         pass
172
173     def __pow__(self, y, z=None):
174         """ 幂，次方 """
175         """ x.__pow__(y[, z]) <==> pow(x, y[, z]) """
176         pass
177
179         """ x.__radd__(y) <==> y+x """
180         pass
181
182     def __rand__(self, y):
183         """ x.__rand__(y) <==> y&x """
184         pass
185
186     def __rdivmod__(self, y):
187         """ x.__rdivmod__(y) <==> divmod(y, x) """
188         pass
189
190     def __rdiv__(self, y):
191         """ x.__rdiv__(y) <==> y/x """
192         pass
193
194     def __repr__(self):
195         """转化为解释器可读取的形式 """
196         """ x.__repr__() <==> repr(x) """
197         pass
198
199     def __str__(self):
200         """转换为人阅读的形式，如果没有适于人阅读的解释形式的话，则返回解释器课阅读的形式"""
201         """ x.__str__() <==> str(x) """
202         pass
203
204     def __rfloordiv__(self, y):
205         """ x.__rfloordiv__(y) <==> y//x """
206         pass
207
208     def __rlshift__(self, y):
209         """ x.__rlshift__(y) <==> y<<x """
210         pass
211
212     def __rmod__(self, y):
213         """ x.__rmod__(y) <==> y%x """
214         pass
215
216     def __rmul__(self, y):
217         """ x.__rmul__(y) <==> y*x """
218         pass
219
220     def __ror__(self, y):
221         """ x.__ror__(y) <==> y|x """
222         pass
223
224     def __rpow__(self, x, z=None):
225         """ y.__rpow__(x[, z]) <==> pow(x, y[, z]) """
226         pass
227
228     def __rrshift__(self, y):
229         """ x.__rrshift__(y) <==> y>>x """
230         pass
231
232     def __rshift__(self, y):
233         """ x.__rshift__(y) <==> x>>y """
234         pass
235
236     def __rsub__(self, y):
237         """ x.__rsub__(y) <==> y-x """
238         pass
239
240     def __rtruediv__(self, y):
241         """ x.__rtruediv__(y) <==> y/x """
242         pass
243
244     def __rxor__(self, y):
245         """ x.__rxor__(y) <==> y^x """
246         pass
247
248     def __sub__(self, y):
249         """ x.__sub__(y) <==> x-y """
250         pass
251
252     def __truediv__(self, y):
253         """ x.__truediv__(y) <==> x/y """
254         pass
255
256     def __trunc__(self, *args, **kwargs):
257         """ 返回数值被截取为整形的值，在整形中无意义 """
258         pass
259
260     def __xor__(self, y):
261         """ x.__xor__(y) <==> x^y """
262         pass
263
264     denominator = property(lambda self: object(), lambda self, v: None, lambda self: None)  # default
265     """ 分母 = 1 """
266     """the denominator of a rational number in lowest terms"""
267
268     imag = property(lambda self: object(), lambda self, v: None, lambda self: None)  # default
269     """ 虚数，无意义 """
270     """the imaginary part of a complex number"""
271
272     numerator = property(lambda self: object(), lambda self, v: None, lambda self: None)  # default
273     """ 分子 = 数字大小 """
274     """the numerator of a rational number in lowest terms"""
275
276     real = property(lambda self: object(), lambda self, v: None, lambda self: None)  # default
277     """ 实属，无意义 """
278     """the real part of a complex number"""
279
280 int```
View Code
2、布尔值
真或假
1 或 0
3、字符串
"zhangsan" 或者 ‘zhangsan‘ 英文输入法状态的 引号
字符串常用功能：
• 移除空白
• 分割
• 长度
• 索引
• 切片  ```  1 class str(basestring):
2     """
3     str(object=‘‘) -> string
4
5     Return a nice string representation of the object.
6     If the argument is a string, the return value is the same object.
7     """
8     def capitalize(self):
9         """ 首字母变大写 """
10         """
11         S.capitalize() -> string
12
13         Return a copy of the string S with only its first character
14         capitalized.
15         """
16         return ""
17
18     def center(self, width, fillchar=None):
19         """ 内容居中，width：总长度；fillchar：空白处填充内容，默认无 """
20         """
21         S.center(width[, fillchar]) -> string
22
23         Return S centered in a string of length width. Padding is
24         done using the specified fill character (default is a space)
25         """
26         return ""
27
28     def count(self, sub, start=None, end=None):
29         """ 子序列个数 """
30         """
31         S.count(sub[, start[, end]]) -> int
32
33         Return the number of non-overlapping occurrences of substring sub in
34         string S[start:end].  Optional arguments start and end are interpreted
35         as in slice notation.
36         """
37         return 0
38
39     def decode(self, encoding=None, errors=None):
40         """ 解码 """
41         """
42         S.decode([encoding[,errors]]) -> object
43
44         Decodes S using the codec registered for encoding. encoding defaults
45         to the default encoding. errors may be given to set a different error
46         handling scheme. Default is ‘strict‘ meaning that encoding errors raise
47         a UnicodeDecodeError. Other possible values are ‘ignore‘ and ‘replace‘
48         as well as any other name registered with codecs.register_error that is
49         able to handle UnicodeDecodeErrors.
50         """
51         return object()
52
53     def encode(self, encoding=None, errors=None):
54         """ 编码，针对unicode """
55         """
56         S.encode([encoding[,errors]]) -> object
57
58         Encodes S using the codec registered for encoding. encoding defaults
59         to the default encoding. errors may be given to set a different error
60         handling scheme. Default is ‘strict‘ meaning that encoding errors raise
61         a UnicodeEncodeError. Other possible values are ‘ignore‘, ‘replace‘ and
62         ‘xmlcharrefreplace‘ as well as any other name registered with
63         codecs.register_error that is able to handle UnicodeEncodeErrors.
64         """
65         return object()
66
67     def endswith(self, suffix, start=None, end=None):
68         """ 是否以 xxx 结束 """
69         """
70         S.endswith(suffix[, start[, end]]) -> bool
71
72         Return True if S ends with the specified suffix, False otherwise.
73         With optional start, test S beginning at that position.
74         With optional end, stop comparing S at that position.
75         suffix can also be a tuple of strings to try.
76         """
77         return False
78
79     def expandtabs(self, tabsize=None):
80         """ 将tab转换成空格，默认一个tab转换成8个空格 """
81         """
82         S.expandtabs([tabsize]) -> string
83
84         Return a copy of S where all tab characters are expanded using spaces.
85         If tabsize is not given, a tab size of 8 characters is assumed.
86         """
87         return ""
88
89     def find(self, sub, start=None, end=None):
90         """ 寻找子序列位置，如果没找到，返回 -1 """
91         """
92         S.find(sub [,start [,end]]) -> int
93
94         Return the lowest index in S where substring sub is found,
95         such that sub is contained within S[start:end].  Optional
96         arguments start and end are interpreted as in slice notation.
97
98         Return -1 on failure.
99         """
100         return 0
101
102     def format(*args, **kwargs): # known special case of str.format
103         """ 字符串格式化，动态参数，将函数式编程时细说 """
104         """
105         S.format(*args, **kwargs) -> string
106
107         Return a formatted version of S, using substitutions from args and kwargs.
108         The substitutions are identified by braces (‘{‘ and ‘}‘).
109         """
110         pass
111
112     def index(self, sub, start=None, end=None):
113         """ 子序列位置，如果没找到，报错 """
114         S.index(sub [,start [,end]]) -> int
115
116         Like S.find() but raise ValueError when the substring is not found.
117         """
118         return 0
119
120     def isalnum(self):
121         """ 是否是字母和数字 """
122         """
123         S.isalnum() -> bool
124
125         Return True if all characters in S are alphanumeric
126         and there is at least one character in S, False otherwise.
127         """
128         return False
129
130     def isalpha(self):
131         """ 是否是字母 """
132         """
133         S.isalpha() -> bool
134
135         Return True if all characters in S are alphabetic
136         and there is at least one character in S, False otherwise.
137         """
138         return False
139
140     def isdigit(self):
141         """ 是否是数字 """
142         """
143         S.isdigit() -> bool
144
145         Return True if all characters in S are digits
146         and there is at least one character in S, False otherwise.
147         """
148         return False
149
150     def islower(self):
151         """ 是否小写 """
152         """
153         S.islower() -> bool
154
155         Return True if all cased characters in S are lowercase and there is
156         at least one cased character in S, False otherwise.
157         """
158         return False
159
160     def isspace(self):
161         """
162         S.isspace() -> bool
163
164         Return True if all characters in S are whitespace
165         and there is at least one character in S, False otherwise.
166         """
167         return False
168
169     def istitle(self):
170         """
171         S.istitle() -> bool
172
173         Return True if S is a titlecased string and there is at least one
174         character in S, i.e. uppercase characters may only follow uncased
175         characters and lowercase characters only cased ones. Return False
176         otherwise.
177         """
178         return False
179
180     def isupper(self):
181         """
182         S.isupper() -> bool
183
184         Return True if all cased characters in S are uppercase and there is
185         at least one cased character in S, False otherwise.
186         """
187         return False
188
189     def join(self, iterable):
190         """ 连接 """
191         """
192         S.join(iterable) -> string
193
194         Return a string which is the concatenation of the strings in the
195         iterable.  The separator between elements is S.
196         """
197         return ""
198
199     def ljust(self, width, fillchar=None):
200         """ 内容左对齐，右侧填充 """
201         """
202         S.ljust(width[, fillchar]) -> string
203
204         Return S left-justified in a string of length width. Padding is
205         done using the specified fill character (default is a space).
206         """
207         return ""
208
209     def lower(self):
210         """ 变小写 """
211         """
212         S.lower() -> string
213
214         Return a copy of the string S converted to lowercase.
215         """
216         return ""
217
218     def lstrip(self, chars=None):
219         """ 移除左侧空白 """
220         """
221         S.lstrip([chars]) -> string or unicode
222
223         Return a copy of the string S with leading whitespace removed.
224         If chars is given and not None, remove characters in chars instead.
225         If chars is unicode, S will be converted to unicode before stripping
226         """
227         return ""
228
229     def partition(self, sep):
230         """ 分割，前，中，后三部分 """
231         """
232         S.partition(sep) -> (head, sep, tail)
233
234         Search for the separator sep in S, and return the part before it,
235         the separator itself, and the part after it.  If the separator is not
236         found, return S and two empty strings.
237         """
238         pass
239
240     def replace(self, old, new, count=None):
241         """ 替换 """
242         """
243         S.replace(old, new[, count]) -> string
244
245         Return a copy of string S with all occurrences of substring
246         old replaced by new.  If the optional argument count is
247         given, only the first count occurrences are replaced.
248         """
249         return ""
250
251     def rfind(self, sub, start=None, end=None):
252         """
253         S.rfind(sub [,start [,end]]) -> int
254
255         Return the highest index in S where substring sub is found,
256         such that sub is contained within S[start:end].  Optional
257         arguments start and end are interpreted as in slice notation.
258
259         Return -1 on failure.
260         """
261         return 0
262
263     def rindex(self, sub, start=None, end=None):
264         """
265         S.rindex(sub [,start [,end]]) -> int
266
267         Like S.rfind() but raise ValueError when the substring is not found.
268         """
269         return 0
270
271     def rjust(self, width, fillchar=None):
272         """
273         S.rjust(width[, fillchar]) -> string
274
275         Return S right-justified in a string of length width. Padding is
276         done using the specified fill character (default is a space)
277         """
278         return ""
279
280     def rpartition(self, sep):
281         """
282         S.rpartition(sep) -> (head, sep, tail)
283
284         Search for the separator sep in S, starting at the end of S, and return
285         the part before it, the separator itself, and the part after it.  If the
287         """
288         pass
289
290     def rsplit(self, sep=None, maxsplit=None):
291         """
292         S.rsplit([sep [,maxsplit]]) -> list of strings
293
294         Return a list of the words in the string S, using sep as the
295         delimiter string, starting at the end of the string and working
296         to the front.  If maxsplit is given, at most maxsplit splits are
297         done. If sep is not specified or is None, any whitespace string
298         is a separator.
299         """
300         return []
301
302     def rstrip(self, chars=None):
303         """
304         S.rstrip([chars]) -> string or unicode
305
306         Return a copy of the string S with trailing whitespace removed.
307         If chars is given and not None, remove characters in chars instead.
308         If chars is unicode, S will be converted to unicode before stripping
309         """
310         return ""
311
312     def split(self, sep=None, maxsplit=None):
313         """ 分割， maxsplit最多分割几次 """
314         """
315         S.split([sep [,maxsplit]]) -> list of strings
316
317         Return a list of the words in the string S, using sep as the
318         delimiter string.  If maxsplit is given, at most maxsplit
319         splits are done. If sep is not specified or is None, any
320         whitespace string is a separator and empty strings are removed
321         from the result.
322         """
323         return []
324
325     def splitlines(self, keepends=False):
326         """ 根据换行分割 """
327         """
328         S.splitlines(keepends=False) -> list of strings
329
330         Return a list of the lines in S, breaking at line boundaries.
331         Line breaks are not included in the resulting list unless keepends
332         is given and true.
333         """
334         return []
335
336     def startswith(self, prefix, start=None, end=None):
337         """ 是否起始 """
338         """
339         S.startswith(prefix[, start[, end]]) -> bool
340
341         Return True if S starts with the specified prefix, False otherwise.
342         With optional start, test S beginning at that position.
343         With optional end, stop comparing S at that position.
344         prefix can also be a tuple of strings to try.
345         """
346         return False
347
348     def strip(self, chars=None):
349         """ 移除两段空白 """
350         """
351         S.strip([chars]) -> string or unicode
352
353         Return a copy of the string S with leading and trailing
354         whitespace removed.
355         If chars is given and not None, remove characters in chars instead.
356         If chars is unicode, S will be converted to unicode before stripping
357         """
358         return ""
359
360     def swapcase(self):
361         """ 大写变小写，小写变大写 """
362         """
363         S.swapcase() -> string
364
365         Return a copy of the string S with uppercase characters
366         converted to lowercase and vice versa.
367         """
368         return ""
369
370     def title(self):
371         """
372         S.title() -> string
373
374         Return a titlecased version of S, i.e. words start with uppercase
375         characters, all remaining cased characters have lowercase.
376         """
377         return ""
378
379     def translate(self, table, deletechars=None):
380         """
381         转换，需要先做一个对应表，最后一个表示删除字符集合
382         intab = "aeiou"
383         outtab = "12345"
384         trantab = maketrans(intab, outtab)
385         str = "this is string example....wow!!!"
386         print str.translate(trantab, ‘xm‘)
387         """
388
389         """
390         S.translate(table [,deletechars]) -> string
391
392         Return a copy of the string S, where all characters occurring
393         in the optional argument deletechars are removed, and the
394         remaining characters have been mapped through the given
395         translation table, which must be a string of length 256 or None.
396         If the table argument is None, no translation is applied and
397         the operation simply removes the characters in deletechars.
398         """
399         return ""
400
401     def upper(self):
402         """
403         S.upper() -> string
404
405         Return a copy of the string S converted to uppercase.
406         """
407         return ""
408
409     def zfill(self, width):
410         """方法返回指定长度的字符串，原字符串右对齐，前面填充0。"""
411         """
412         S.zfill(width) -> string
413
414         Pad a numeric string S with zeros on the left, to fill a field
415         of the specified width.  The string S is never truncated.
416         """
417         return ""
418
419     def _formatter_field_name_split(self, *args, **kwargs): # real signature unknown
420         pass
421
422     def _formatter_parser(self, *args, **kwargs): # real signature unknown
423         pass
424
426         """ x.__add__(y) <==> x+y """
427         pass
428
429     def __contains__(self, y):
430         """ x.__contains__(y) <==> y in x """
431         pass
432
433     def __eq__(self, y):
434         """ x.__eq__(y) <==> x==y """
435         pass
436
437     def __format__(self, format_spec):
438         """
439         S.__format__(format_spec) -> string
440
441         Return a formatted version of S as described by format_spec.
442         """
443         return ""
444
445     def __getattribute__(self, name):
446         """ x.__getattribute__(‘name‘) <==> x.name """
447         pass
448
449     def __getitem__(self, y):
450         """ x.__getitem__(y) <==> x[y] """
451         pass
452
453     def __getnewargs__(self, *args, **kwargs): # real signature unknown
454         pass
455
456     def __getslice__(self, i, j):
457         """
458         x.__getslice__(i, j) <==> x[i:j]
459
460                    Use of negative indices is not supported.
461         """
462         pass
463
464     def __ge__(self, y):
465         """ x.__ge__(y) <==> x>=y """
466         pass
467
468     def __gt__(self, y):
469         """ x.__gt__(y) <==> x>y """
470         pass
471
472     def __hash__(self):
473         """ x.__hash__() <==> hash(x) """
474         pass
475
476     def __init__(self, string=‘‘): # known special case of str.__init__
477         """
478         str(object=‘‘) -> string
479
480         Return a nice string representation of the object.
481         If the argument is a string, the return value is the same object.
482         # (copied from class doc)
483         """
484         pass
485
486     def __len__(self):
487         """ x.__len__() <==> len(x) """
488         pass
489
490     def __le__(self, y):
491         """ x.__le__(y) <==> x<=y """
492         pass
493
494     def __lt__(self, y):
495         """ x.__lt__(y) <==> x<y """
496         pass
497
498     def __mod__(self, y):
499         """ x.__mod__(y) <==> x%y """
500         pass
501
502     def __mul__(self, n):
503         """ x.__mul__(n) <==> x*n """
504         pass
505
506     @staticmethod # known case of __new__
507     def __new__(S, *more):
508         """ T.__new__(S, ...) -> a new object with type S, a subtype of T """
509         pass
510
511     def __ne__(self, y):
512         """ x.__ne__(y) <==> x!=y """
513         pass
514
515     def __repr__(self):
516         """ x.__repr__() <==> repr(x) """
517         pass
518
519     def __rmod__(self, y):
520         """ x.__rmod__(y) <==> y%x """
521         pass
522
523     def __rmul__(self, n):
524         """ x.__rmul__(n) <==> n*x """
525         pass
526
527     def __sizeof__(self):
528         """ S.__sizeof__() -> size of S in memory, in bytes """
529         pass
530
531     def __str__(self):
532         """ x.__str__() <==> str(x) """
533         pass
534
535 str```
View Code
4、列表
创建列表：
`name_class= [‘zhangsan‘,‘sunwukong‘,‘rulai‘]`

基本操作：

• 索引
• 切片
• 追加
• 删除
• 长度
• 切片
• 循环
• 包含  ```  1 class list(object):
2     """
3     list() -> new empty list
4     list(iterable) -> new list initialized from iterable‘s items
5     """
6     def append(self, p_object): # real signature unknown; restored from __doc__
7         """ L.append(object) -- append object to end """
8         pass
9
10     def count(self, value): # real signature unknown; restored from __doc__
11         """ L.count(value) -> integer -- return number of occurrences of value """
12         return 0
13
14     def extend(self, iterable): # real signature unknown; restored from __doc__
15         """ L.extend(iterable) -- extend list by appending elements from the iterable """
16         pass
17
18     def index(self, value, start=None, stop=None): # real signature unknown; restored from __doc__
19         """
20         L.index(value, [start, [stop]]) -> integer -- return first index of value.
21         Raises ValueError if the value is not present.
22         """
23         return 0
24
25     def insert(self, index, p_object): # real signature unknown; restored from __doc__
26         """ L.insert(index, object) -- insert object before index """
27         pass
28
29     def pop(self, index=None): # real signature unknown; restored from __doc__
30         """
31         L.pop([index]) -> item -- remove and return item at index (default last).
32         Raises IndexError if list is empty or index is out of range.
33         """
34         pass
35
36     def remove(self, value): # real signature unknown; restored from __doc__
37         """
38         L.remove(value) -- remove first occurrence of value.
39         Raises ValueError if the value is not present.
40         """
41         pass
42
43     def reverse(self): # real signature unknown; restored from __doc__
44         """ L.reverse() -- reverse *IN PLACE* """
45         pass
46
47     def sort(self, cmp=None, key=None, reverse=False): # real signature unknown; restored from __doc__
48         """
49         L.sort(cmp=None, key=None, reverse=False) -- stable sort *IN PLACE*;
50         cmp(x, y) -> -1, 0, 1
51         """
52         pass
53
54     def __add__(self, y): # real signature unknown; restored from __doc__
55         """ x.__add__(y) <==> x+y """
56         pass
57
58     def __contains__(self, y): # real signature unknown; restored from __doc__
59         """ x.__contains__(y) <==> y in x """
60         pass
61
62     def __delitem__(self, y): # real signature unknown; restored from __doc__
63         """ x.__delitem__(y) <==> del x[y] """
64         pass
65
66     def __delslice__(self, i, j): # real signature unknown; restored from __doc__
67         """
68         x.__delslice__(i, j) <==> del x[i:j]
69
70                    Use of negative indices is not supported.
71         """
72         pass
73
74     def __eq__(self, y): # real signature unknown; restored from __doc__
75         """ x.__eq__(y) <==> x==y """
76         pass
77
78     def __getattribute__(self, name): # real signature unknown; restored from __doc__
79         """ x.__getattribute__(‘name‘) <==> x.name """
80         pass
81
82     def __getitem__(self, y): # real signature unknown; restored from __doc__
83         """ x.__getitem__(y) <==> x[y] """
84         pass
85
86     def __getslice__(self, i, j): # real signature unknown; restored from __doc__
87         """
88         x.__getslice__(i, j) <==> x[i:j]
89
90                    Use of negative indices is not supported.
91         """
92         pass
93
94     def __ge__(self, y): # real signature unknown; restored from __doc__
95         """ x.__ge__(y) <==> x>=y """
96         pass
97
98     def __gt__(self, y): # real signature unknown; restored from __doc__
99         """ x.__gt__(y) <==> x>y """
100         pass
101
102     def __iadd__(self, y): # real signature unknown; restored from __doc__
103         """ x.__iadd__(y) <==> x+=y """
104         pass
105
106     def __imul__(self, y): # real signature unknown; restored from __doc__
107         """ x.__imul__(y) <==> x*=y """
108         pass
109
110     def __init__(self, seq=()): # known special case of list.__init__
111         """
112         list() -> new empty list
113         list(iterable) -> new list initialized from iterable‘s items
114         # (copied from class doc)
115         """
116         pass
117
118     def __iter__(self): # real signature unknown; restored from __doc__
119         """ x.__iter__() <==> iter(x) """
120         pass
121
122     def __len__(self): # real signature unknown; restored from __doc__
123         """ x.__len__() <==> len(x) """
124         pass
125
126     def __le__(self, y): # real signature unknown; restored from __doc__
127         """ x.__le__(y) <==> x<=y """
128         pass
129
130     def __lt__(self, y): # real signature unknown; restored from __doc__
131         """ x.__lt__(y) <==> x<y """
132         pass
133
134     def __mul__(self, n): # real signature unknown; restored from __doc__
135         """ x.__mul__(n) <==> x*n """
136         pass
137
138     @staticmethod # known case of __new__
139     def __new__(S, *more): # real signature unknown; restored from __doc__
140         """ T.__new__(S, ...) -> a new object with type S, a subtype of T """
141         pass
142
143     def __ne__(self, y): # real signature unknown; restored from __doc__
144         """ x.__ne__(y) <==> x!=y """
145         pass
146
147     def __repr__(self): # real signature unknown; restored from __doc__
148         """ x.__repr__() <==> repr(x) """
149         pass
150
151     def __reversed__(self): # real signature unknown; restored from __doc__
152         """ L.__reversed__() -- return a reverse iterator over the list """
153         pass
154
155     def __rmul__(self, n): # real signature unknown; restored from __doc__
156         """ x.__rmul__(n) <==> n*x """
157         pass
158
159     def __setitem__(self, i, y): # real signature unknown; restored from __doc__
160         """ x.__setitem__(i, y) <==> x[i]=y """
161         pass
162
163     def __setslice__(self, i, j, y): # real signature unknown; restored from __doc__
164         """
165         x.__setslice__(i, j, y) <==> x[i:j]=y
166
167                    Use  of negative indices is not supported.
168         """
169         pass
170
171     def __sizeof__(self): # real signature unknown; restored from __doc__
172         """ L.__sizeof__() -- size of L in memory, in bytes """
173         pass
174
175     __hash__ = None
176
177 list```
View Code
5、元组
创建元组：
`num = (20,50,23,12)`
`num = tuple((20,50,23,12))`
`tuple 另一种有序列表叫元组：tuple。tuple和list非常类似，但是tuple一旦初始化就不能修改，比如同样是列出同学的名字`classmates = (‘Michael‘, ‘Bob‘, ‘Tracy‘)``
基本操作：
• 索引
• 切片
• 循环
• 长度
• 包含  ```  1 lass tuple(object):
2     """
3     tuple() -> empty tuple
4     tuple(iterable) -> tuple initialized from iterable‘s items
5
6     If the argument is a tuple, the return value is the same object.
7     """
8     def count(self, value): # real signature unknown; restored from __doc__
9         """ T.count(value) -> integer -- return number of occurrences of value """
10         return 0
11
12     def index(self, value, start=None, stop=None): # real signature unknown; restored from __doc__
13         """
14         T.index(value, [start, [stop]]) -> integer -- return first index of value.
15         Raises ValueError if the value is not present.
16         """
17         return 0
18
19     def __add__(self, y): # real signature unknown; restored from __doc__
20         """ x.__add__(y) <==> x+y """
21         pass
22
23     def __contains__(self, y): # real signature unknown; restored from __doc__
24         """ x.__contains__(y) <==> y in x """
25         pass
26
27     def __eq__(self, y): # real signature unknown; restored from __doc__
28         """ x.__eq__(y) <==> x==y """
29         pass
30
31     def __getattribute__(self, name): # real signature unknown; restored from __doc__
32         """ x.__getattribute__(‘name‘) <==> x.name """
33         pass
34
35     def __getitem__(self, y): # real signature unknown; restored from __doc__
36         """ x.__getitem__(y) <==> x[y] """
37         pass
38
39     def __getnewargs__(self, *args, **kwargs): # real signature unknown
40         pass
41
42     def __getslice__(self, i, j): # real signature unknown; restored from __doc__
43         """
44         x.__getslice__(i, j) <==> x[i:j]
45
46                    Use of negative indices is not supported.
47         """
48         pass
49
50     def __ge__(self, y): # real signature unknown; restored from __doc__
51         """ x.__ge__(y) <==> x>=y """
52         pass
53
54     def __gt__(self, y): # real signature unknown; restored from __doc__
55         """ x.__gt__(y) <==> x>y """
56         pass
57
58     def __hash__(self): # real signature unknown; restored from __doc__
59         """ x.__hash__() <==> hash(x) """
60         pass
61
62     def __init__(self, seq=()): # known special case of tuple.__init__
63         """
64         tuple() -> empty tuple
65         tuple(iterable) -> tuple initialized from iterable‘s items
66
67         If the argument is a tuple, the return value is the same object.
68         # (copied from class doc)
69         """
70         pass
71
72     def __iter__(self): # real signature unknown; restored from __doc__
73         """ x.__iter__() <==> iter(x) """
74         pass
75
76     def __len__(self): # real signature unknown; restored from __doc__
77         """ x.__len__() <==> len(x) """
78         pass
79
80     def __le__(self, y): # real signature unknown; restored from __doc__
81         """ x.__le__(y) <==> x<=y """
82         pass
83
84     def __lt__(self, y): # real signature unknown; restored from __doc__
85         """ x.__lt__(y) <==> x<y """
86         pass
87
88     def __mul__(self, n): # real signature unknown; restored from __doc__
89         """ x.__mul__(n) <==> x*n """
90         pass
91
92     @staticmethod # known case of __new__
93     def __new__(S, *more): # real signature unknown; restored from __doc__
94         """ T.__new__(S, ...) -> a new object with type S, a subtype of T """
95         pass
96
97     def __ne__(self, y): # real signature unknown; restored from __doc__
98         """ x.__ne__(y) <==> x!=y """
99         pass
100
101     def __repr__(self): # real signature unknown; restored from __doc__
102         """ x.__repr__() <==> repr(x) """
103         pass
104
105     def __rmul__(self, n): # real signature unknown; restored from __doc__
106         """ x.__rmul__(n) <==> n*x """
107         pass
108
109     def __sizeof__(self): # real signature unknown; restored from __doc__
110         """ T.__sizeof__() -- size of T in memory, in bytes """
111         pass
112
113 tuple```
View Code
6、字典（无序）
创建字典：
```pasdd = {"name": "mr.zhang", ‘age‘: 12}
或
pasdd = dict({"name": "mr.zhang", ‘age‘: 13})```

常用操作：

• 索引
• 新增
• 删除
• 键、值、键值对
• 循环
• 长度  ```  1 class dict(object):
2     """
3     dict() -> new empty dictionary
4     dict(mapping) -> new dictionary initialized from a mapping object‘s
5         (key, value) pairs
6     dict(iterable) -> new dictionary initialized as if via:
7         d = {}
8         for k, v in iterable:
9             d[k] = v
10     dict(**kwargs) -> new dictionary initialized with the name=value pairs
11         in the keyword argument list.  For example:  dict(one=1, two=2)
12     """
13
14     def clear(self): # real signature unknown; restored from __doc__
15         """ 清除内容 """
16         """ D.clear() -> None.  Remove all items from D. """
17         pass
18
19     def copy(self): # real signature unknown; restored from __doc__
20         """ 浅拷贝 """
21         """ D.copy() -> a shallow copy of D """
22         pass
23
24     @staticmethod # known case
25     def fromkeys(S, v=None): # real signature unknown; restored from __doc__
26         """
27         dict.fromkeys(S[,v]) -> New dict with keys from S and values equal to v.
28         v defaults to None.
29         """
30         pass
31
32     def get(self, k, d=None): # real signature unknown; restored from __doc__
33         """ 根据key获取值，d是默认值 """
34         """ D.get(k[,d]) -> D[k] if k in D, else d.  d defaults to None. """
35         pass
36
37     def has_key(self, k): # real signature unknown; restored from __doc__
38         """ 是否有key """
39         """ D.has_key(k) -> True if D has a key k, else False """
40         return False
41
42     def items(self): # real signature unknown; restored from __doc__
43         """ 所有项的列表形式 """
44         """ D.items() -> list of D‘s (key, value) pairs, as 2-tuples """
45         return []
46
47     def iteritems(self): # real signature unknown; restored from __doc__
48         """ 项可迭代 """
49         """ D.iteritems() -> an iterator over the (key, value) items of D """
50         pass
51
52     def iterkeys(self): # real signature unknown; restored from __doc__
53         """ key可迭代 """
54         """ D.iterkeys() -> an iterator over the keys of D """
55         pass
56
57     def itervalues(self): # real signature unknown; restored from __doc__
58         """ value可迭代 """
59         """ D.itervalues() -> an iterator over the values of D """
60         pass
61
62     def keys(self): # real signature unknown; restored from __doc__
63         """ 所有的key列表 """
64         """ D.keys() -> list of D‘s keys """
65         return []
66
67     def pop(self, k, d=None): # real signature unknown; restored from __doc__
68         """ 获取并在字典中移除 """
69         """
70         D.pop(k[,d]) -> v, remove specified key and return the corresponding value.
71         If key is not found, d is returned if given, otherwise KeyError is raised
72         """
73         pass
74
75     def popitem(self): # real signature unknown; restored from __doc__
76         """ 获取并在字典中移除 """
77         """
78         D.popitem() -> (k, v), remove and return some (key, value) pair as a
79         2-tuple; but raise KeyError if D is empty.
80         """
81         pass
82
83     def setdefault(self, k, d=None): # real signature unknown; restored from __doc__
84         """ 如果key不存在，则创建，如果存在，则返回已存在的值且不修改 """
85         """ D.setdefault(k[,d]) -> D.get(k,d), also set D[k]=d if k not in D """
86         pass
87
88     def update(self, E=None, **F): # known special case of dict.update
89         """ 更新
90             {‘name‘:‘alex‘, ‘age‘: 18000}
91             [(‘name‘,‘sbsbsb‘),]
92         """
93         """
94         D.update([E, ]**F) -> None.  Update D from dict/iterable E and F.
95         If E present and has a .keys() method, does:     for k in E: D[k] = E[k]
96         If E present and lacks .keys() method, does:     for (k, v) in E: D[k] = v
97         In either case, this is followed by: for k in F: D[k] = F[k]
98         """
99         pass
100
101     def values(self): # real signature unknown; restored from __doc__
102         """ 所有的值 """
103         """ D.values() -> list of D‘s values """
104         return []
105
106     def viewitems(self): # real signature unknown; restored from __doc__
107         """ 所有项，只是将内容保存至view对象中 """
108         """ D.viewitems() -> a set-like object providing a view on D‘s items """
109         pass
110
111     def viewkeys(self): # real signature unknown; restored from __doc__
112         """ D.viewkeys() -> a set-like object providing a view on D‘s keys """
113         pass
114
115     def viewvalues(self): # real signature unknown; restored from __doc__
116         """ D.viewvalues() -> an object providing a view on D‘s values """
117         pass
118
119     def __cmp__(self, y): # real signature unknown; restored from __doc__
120         """ x.__cmp__(y) <==> cmp(x,y) """
121         pass
122
123     def __contains__(self, k): # real signature unknown; restored from __doc__
124         """ D.__contains__(k) -> True if D has a key k, else False """
125         return False
126
127     def __delitem__(self, y): # real signature unknown; restored from __doc__
128         """ x.__delitem__(y) <==> del x[y] """
129         pass
130
131     def __eq__(self, y): # real signature unknown; restored from __doc__
132         """ x.__eq__(y) <==> x==y """
133         pass
134
135     def __getattribute__(self, name): # real signature unknown; restored from __doc__
136         """ x.__getattribute__(‘name‘) <==> x.name """
137         pass
138
139     def __getitem__(self, y): # real signature unknown; restored from __doc__
140         """ x.__getitem__(y) <==> x[y] """
141         pass
142
143     def __ge__(self, y): # real signature unknown; restored from __doc__
144         """ x.__ge__(y) <==> x>=y """
145         pass
146
147     def __gt__(self, y): # real signature unknown; restored from __doc__
148         """ x.__gt__(y) <==> x>y """
149         pass
150
151     def __init__(self, seq=None, **kwargs): # known special case of dict.__init__
152         """
153         dict() -> new empty dictionary
154         dict(mapping) -> new dictionary initialized from a mapping object‘s
155             (key, value) pairs
156         dict(iterable) -> new dictionary initialized as if via:
157             d = {}
158             for k, v in iterable:
159                 d[k] = v
160         dict(**kwargs) -> new dictionary initialized with the name=value pairs
161             in the keyword argument list.  For example:  dict(one=1, two=2)
162         # (copied from class doc)
163         """
164         pass
165
166     def __iter__(self): # real signature unknown; restored from __doc__
167         """ x.__iter__() <==> iter(x) """
168         pass
169
170     def __len__(self): # real signature unknown; restored from __doc__
171         """ x.__len__() <==> len(x) """
172         pass
173
174     def __le__(self, y): # real signature unknown; restored from __doc__
175         """ x.__le__(y) <==> x<=y """
176         pass
177
178     def __lt__(self, y): # real signature unknown; restored from __doc__
179         """ x.__lt__(y) <==> x<y """
180         pass
181
182     @staticmethod # known case of __new__
183     def __new__(S, *more): # real signature unknown; restored from __doc__
184         """ T.__new__(S, ...) -> a new object with type S, a subtype of T """
185         pass
186
187     def __ne__(self, y): # real signature unknown; restored from __doc__
188         """ x.__ne__(y) <==> x!=y """
189         pass
190
191     def __repr__(self): # real signature unknown; restored from __doc__
192         """ x.__repr__() <==> repr(x) """
193         pass
194
195     def __setitem__(self, i, y): # real signature unknown; restored from __doc__
196         """ x.__setitem__(i, y) <==> x[i]=y """
197         pass
198
199     def __sizeof__(self): # real signature unknown; restored from __doc__
200         """ D.__sizeof__() -> size of D in memory, in bytes """
201         pass
202
203     __hash__ = None
204
205 dict```
View Code 0
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