python基本数据类型之int
数字：int
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-9223372036854775808～9223372036854775807
1 #!/usr/bin/env python
2 # -*- coding: utf-8 -*-
3
4 """ 基本数据类型之int """
5
6
7 class int(object):
8 """
9 int(x=0) -> integer
10 int(x, base=10) -> integer
11
12 Convert a number or string to an integer, or return 0 if no arguments
13 are given. If x is a number, return x.__int__(). For floating point
14 numbers, this truncates towards zero.
15
16 If x is not a number or if base is given, then x must be a string,
17 bytes, or bytearray instance representing an integer literal in the
18 given base. The literal can be preceded by '+' or '-' and be surrounded
19 by whitespace. The base defaults to 10. Valid bases are 0 and 2-36.
20 Base 0 means to interpret the base from the string as an integer literal.
21 >>> int('0b100', base=0)
22 4
23 """
24
25 def bit_length(self): # real signature unknown; restored from __doc__
26 """ 返回用二进制表示该数字的最少位数 """
27 """
28 int.bit_length() -> int
29
30 Number of bits necessary to represent self in binary.
31 >>> bin(37)
32 '0b100101'
33 >>> (37).bit_length()
34 6
35 """
36 return 0
37
38 def conjugate(self, *args, **kwargs): # real signature unknown
39 """ 返回该数字的共轭复数 """
40 """ Returns self, the complex conjugate of any int. """
41 pass
42
43 @classmethod # known case
44 def from_bytes(cls, bytes, byteorder, *args,**kwargs): # real signature unknown; NOTE: unreliably restored from __doc__
45 """ 将字节转换成相应的数字，其中byte是字节；byteorder是字节顺序，big是高字节在后低字节在前
46 little是低字节在后，高字节在前；signed表示的是有符号和无符号
47 """
48 """
49 int.from_bytes(bytes, byteorder, *, signed=False) -> int
50
51 Return the integer represented by the given array of bytes.
52
53 The bytes argument must be a bytes-like object (e.g. bytes or bytearray).
54
55 The byteorder argument determines the byte order used to represent the
56 integer. If byteorder is 'big', the most significant byte is at the
57 beginning of the byte array. If byteorder is 'little', the most
58 significant byte is at the end of the byte array. To request the native
59 byte order of the host system, use `sys.byteorder' as the byte order value.
60
61 The signed keyword-only argument indicates whether two's complement is
62 used to represent the integer.
63 """
64 pass
65
66 def to_bytes(self, length, byteorder, *args,**kwargs): # real signature unknown; NOTE: unreliably restored from __doc__
67 """ 把数字转换成字节类型的格式，from_bytes的过程 """
68 """
69 int.to_bytes(length, byteorder, *, signed=False) -> bytes
70
71 Return an array of bytes representing an integer.
72
73 The integer is represented using length bytes. An OverflowError is
74 raised if the integer is not representable with the given number of
75 bytes.
76
77 The byteorder argument determines the byte order used to represent the
78 integer. If byteorder is 'big', the most significant byte is at the
79 beginning of the byte array. If byteorder is 'little', the most
80 significant byte is at the end of the byte array. To request the native
81 byte order of the host system, use `sys.byteorder' as the byte order value.
82
83 The signed keyword-only argument determines whether two's complement is
84 used to represent the integer. If signed is False and a negative integer
85 is given, an OverflowError is raised.
86 """
87 pass
88
89 def __abs__(self, *args, **kwargs): # real signature unknown
90 """ 取绝对值 """
91 """ abs(self) """
92 pass
93
94 def __add__(self, *args, **kwargs): # real signature unknown
95 """ 求和运算 """
96 """ Return self+value. """
97 pass
98
99 def __and__(self, *args, **kwargs): # real signature unknown
100 """ 按位与运算 """
101 """ Return self&value. """
102 pass
103
104 def __bool__(self, *args, **kwargs): # real signature unknown
105 """ 返回布尔值，非0数的布尔值是True,0的布尔值是False """
106 """ """
107 """ self != 0 """
108 pass
109
110 def __ceil__(self, *args, **kwargs): # real signature unknown
111 """ 返回这个整数本身 """
112 """ Ceiling of an Integral returns itself. """
113 pass
114
115 def __divmod__(self, *args, **kwargs): # real signature unknown
116 """ (num1).__divmod__(num2) 将num1除以num2，返回的是一个格式为(商，余数)的元组 """
117 """ Return divmod(self, value). """
118 pass
119
120 def __eq__(self, *args, **kwargs): # real signature unknown
121 """ (num1).__eq__(num2) 比较num1和num2的值，相等返回True，不等返回False """
122 """ Return self==value. """
123 pass
124
125 def __float__(self, *args, **kwargs): # real signature unknown
126 """ 将数字从整数类型转换成浮点类型 """
127 """ float(self) """
128 pass
129
130 def __floordiv__(self, *args, **kwargs): # real signature unknown
131 """ 地板除，相当于 // 运算 """
132 """ Return self//value. """
133 pass
134
135 def __floor__(self, *args, **kwargs): # real signature unknown
136 """ 返回这个数本身 """
137 """ Flooring an Integral returns itself. """
138 pass
139
140 def __format__(self, *args, **kwargs): # real signature unknown
141 pass
142
143 def __getattribute__(self, *args, **kwargs): # real signature unknown
144 """ x.__getattribute__('name') == x.name """
145 """ Return getattr(self, name). """
146 pass
147
148 def __getnewargs__(self, *args, **kwargs): # real signature unknown
149 """ 内部调用 __new__方法或创建对象时传入参数使用 """
150 pass
151
152 def __ge__(self, *args, **kwargs): # real signature unknown
153 """ (num1).__ge__(num2) 如果num1大于或等于num2，则返回True，否则返回False """
154 """ Return self>=value. """
155 pass
156
157 def __gt__(self, *args, **kwargs): # real signature unknown
158 """ (num1).__ge__(num2) 如果num1大于num2，则返回True，否则返回False """
159 """ Return self>value. """
160 pass
161
162 def __hash__(self, *args, **kwargs): # real signature unknown
163 """ 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。
164 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 """
165 """ Return hash(self). """
166 pass
167
168 def __index__(self, *args, **kwargs): # real signature unknown
169 """ 用于切片，数字无意义
170 x[y:z] <==> x[y.__index__():z.__index__()]
171 """
172 """ Return self converted to an integer, if self is suitable for use as an index into a list. """
173 pass
174
175 def __init__(self, x, base=10): # known special case of int.__init__
176 """ 构造方法，创建int对象时自动调用 """
177 """
178 int(x=0) -> integer
179 int(x, base=10) -> integer
180
181 Convert a number or string to an integer, or return 0 if no arguments
182 are given. If x is a number, return x.__int__(). For floating point
183 numbers, this truncates towards zero.
184
185 If x is not a number or if base is given, then x must be a string,
186 bytes, or bytearray instance representing an integer literal in the
187 given base. The literal can be preceded by '+' or '-' and be surrounded
188 by whitespace. The base defaults to 10. Valid bases are 0 and 2-36.
189 Base 0 means to interpret the base from the string as an integer literal.
190 >>> int('0b100', base=0)
191 4
192 # (copied from class doc)
193 """
194 pass
195
196 def __int__(self, *args, **kwargs): # real signature unknown
197 """ 转换成整数类型 """
198 """ int(self) """
199 pass
200
201 def __invert__(self, *args, **kwargs): # real signature unknown
202 """ 按位取反， (x).__invert__()类似于-x-1 """
203 """ ~self """
204 pass
205
206 def __le__(self, *args, **kwargs): # real signature unknown
207 """ (num1).__ge__(num2) 如果num1小于或等于num2，则返回True，否则返回False """
208 """ Return self<=value. """
209 pass
210
211 def __lshift__(self, *args, **kwargs): # real signature unknown
212 """ """
213 """ Return self<<value. """
214 pass
215
216 def __lt__(self, *args, **kwargs): # real signature unknown
217 """ (num1).__ge__(num2) 如果num1小于num2，则返回True，否则返回False """
218 """ Return self<value. """
219 pass
220
221 def __mod__(self, *args, **kwargs): # real signature unknown
222 """ 取模运算 """
223 """ Return self%value. """
224 pass
225
226 def __mul__(self, *args, **kwargs): # real signature unknown
227 """ 乘法运算 """
228 """ Return self*value. """
229 pass
230
231 def __neg__(self, *args, **kwargs): # real signature unknown
232 """ (x).__neg() <==> -(x) """
233 """ -self """
234 pass
235
236 @staticmethod # known case of __new__
237 def __new__(*args, **kwargs): # real signature unknown
238 """ Create and return a new object. See help(type) for accurate signature. """
239 pass
240
241 def __ne__(self, *args, **kwargs): # real signature unknown
242 """ x.__ne__(y) 如果x与y的值不相等，返回True,相等则返回False """
243 """ Return self!=value. """
244 """ """
245 pass
246
247 def __or__(self, *args, **kwargs): # real signature unknown
248 """ 按位或运算 """
249 """ Return self|value. """
250 pass
251
252 def __pos__(self, *args, **kwargs): # real signature unknown
253 """ (x).__pos__() <==> +(x) """
254 """ +self """
255 pass
256
257 def __pow__(self, *args, **kwargs): # real signature unknown
258 """ (x).__pow__(y) <==> x**y """
259 """ Return pow(self, value, mod). """
260 pass
261
262 def __radd__(self, *args, **kwargs): # real signature unknown
263 """ 后面的数加上前面的数 """
264 """ Return value+self. """
265 pass
266
267 def __rand__(self, *args, **kwargs): # real signature unknown
268 """ 后面的数对前面的数进行按位与运算 """
269 """ Return value&self. """
270 pass
271
272 def __rdivmod__(self, *args, **kwargs): # real signature unknown
273 """ (num1).__divmod__(num2) 将num2除以num1，返回的是一个格式为(商，余数)的元组 """
274 """ Return divmod(value, self). """
275 pass
276
277 def __repr__(self, *args, **kwargs): # real signature unknown
278 """ 转化为解释器可读取的形式 """
279 """ Return repr(self). """
280 pass
281
282 def __rfloordiv__(self, *args, **kwargs): # real signature unknown
283 """ 后面的数对前面的数进行取整除运算 """
284 """ Return value//self. """
285 pass
286
287 def __rlshift__(self, *args, **kwargs): # real signature unknown
288 """ 左移 (x).__lshift__(y) 相当与y*2^x """
289 """ Return value<<self. """
290 pass
291
292 def __rmod__(self, *args, **kwargs): # real signature unknown
293 """ 后面的数与前面的数进行取模运算 """
294 """ Return value%self. """
295 pass
296
297 def __rmul__(self, *args, **kwargs): # real signature unknown
298 """ 后面的数乘以前面的数 """
299 """ Return value*self. """
300 pass
301
302 def __ror__(self, *args, **kwargs): # real signature unknown
303 """ 后面的数和前面的数进行按位或运算 """
304 """ Return value|self. """
305 pass
306
307 def __round__(self, *args, **kwargs): # real signature unknown
308 """ 返回小数点四舍五入到N个数字，整型无意义 """
309 """
310 Rounding an Integral returns itself.
311 Rounding with an ndigits argument also returns an integer.
312 """
313 pass
314
315 def __rpow__(self, *args, **kwargs): # real signature unknown
316 """ (x).__rpow__(y) <==> y**x """
317 """ Return pow(value, self, mod). """
318 pass
319
320 def __rrshift__(self, *args, **kwargs): # real signature unknown
321 """ 右移 (x).__rrshift__(y) 相当于y//(2^x) """
322 """ Return value>>self. """
323 pass
324
325 def __rshift__(self, *args, **kwargs): # real signature unknown
326 """ 右移 (x).__rshift__(y) 相当于x//(2^y) """
327 """ Return self>>value. """
328 pass
329
330 def __rsub__(self, *args, **kwargs): # real signature unknown
331 """ 后面的数减去前面的数 """
332 """ Return value-self. """
333 pass
334
335 def __rtruediv__(self, *args, **kwargs): # real signature unknown
336 """ 将后面的数除以前面的数 """
337 """ Return value/self. """
338 pass
339
340 def __rxor__(self, *args, **kwargs): # real signature unknown
341 """ 将后面的数与前面的数按位异或 """
342 """ Return value^self. """
343 pass
344
345 def __sizeof__(self, *args, **kwargs): # real signature unknown
346 """ 返回占用的字节数 """
347 """ Returns size in memory, in bytes """
348 pass
349
350 def __str__(self, *args, **kwargs): # real signature unknown
351 """ 转换成可读取的形式 """
352 """ Return str(self). """
353 pass
354
355 def __sub__(self, *args, **kwargs): # real signature unknown
356 """ 将前面的数减去后面的数 """
357 """ Return self-value. """
358 pass
359
360 def __truediv__(self, *args, **kwargs): # real signature unknown
361 """ 将前面的数除以后面的数 """
362 """ Return self/value. """
363 pass
364
365 def __trunc__(self, *args, **kwargs): # real signature unknown
366 """ 返回数值被截取为整型的值，在整型中无意义 """
367 """ Truncating an Integral returns itself. """
368 pass
369
370 def __xor__(self, *args, **kwargs): # real signature unknown
371 """ 将前面的数与后面的数按位异或 """
372 """ Return self^value. """
373 pass
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