python--day2

 1 bit_length(self): 
 2         """ 返回表示该数字的时占用的二进制最少位数 """
 3         a = 18
 4               print(bin(a))
 5               print(a.bit_length())     
 6         0b10010
 7                 5
 8            最少占用5位二进制数
 9            可以通过  bin(a)  查看二进制
10            
11 例:       
12 arg = 18
13 print(arg.bit_length())   
14 print(bin(arg))        
15 输出；
16 5    
17 0b10010
18 0b 表示二进制
19            
20            

1 conjugate(self, *args, **kwargs): # real signature unknown
2         """ 返回该复数的共轭复数 """
3         pass
4         

1 __abs__(self):
2         """ 返回绝对值 """
3         """ x.__abs__() <==> abs(x) """
4         pass
5 a =  -18
6 print(a.__abs__())
7 打印:18
8 python 会把常用的功能放在内置函数里
9 也可以通过abs(-19)来调用__abs__()来拿到绝对值

1 __add__(self, y):
2         """ x.__add__(y) <==> x+y """
3         pass
4         两个值相加
5 a =  -18
6 print(a.__add__(100))
7 打印:82

1 __and__(self, y):
2         """ x.__and__(y) <==> x&y """
3         pass
4         与运算
5 1  且 2         
6         

1 __cmp__(self, y): 
2         """ 比较两个数大小 """
3         """ x.__cmp__(y) <==> cmp(x,y) """
4         pass
5         
6 在  Python3  中 已经没有了

1  def __bool__(self, *args, **kwargs): # real signature unknown
2         """ self != 0 """
3         pass
4 布尔值的转换

 1 def __divmod__(self, y): 
 2           """ 相除，得到商和余数组成的元组 """ 
 3           """ x.__divmod__(y) <==> divmod(x, y) """
 4           pass
 5           
 6           a =  18
 7                 print(a.__divmod__(10))
 8                 
 9                 (1, 8)
10     --------------------            
11 例如:
12 all_item = 95
13 pager = 10
14 resual = all_item.__divmod__(10)
15 print(resual)
16 输出:
17 (9, 5)    
18 ------------------------------
19 a =  18
20 b = a.__divmod__(10)
21 if b[1] >0:
22     print("da le ")
23 else:
24     print("xiaole")
25 print(b[0])

 1 _eq__(self, *args, **kwargs): # real signature unknown
 2         """ Return self==value. """
 3         pass
 4 #两个 字符串做对比如果相等 输出 True 否则 输出 Fales
 5 age = 1
 6 agr = 2
 7 ww = age.__eq__(1)
 8 print(ww)
 9 
10 True
11 --------------------------
12 age = 1
13 agr = 2
14 ww = age.__eq__(2)
15 print(ww)
16 
17 False

1 浮点型 把一个数字转换成浮点型
2 age = 1
3 #执行了一个age.__float__() 是吧age 转换成浮点型可以通过print 类型来查看
4 eee = age.__float__()
5 print(type(age))
6 print(type(eee))
7 
8 <class ‘int‘>
9 <class ‘float‘>

 1 __floordiv__(self, *args, **kwargs): # real signature unknown
 2         """ Return self//value. """
 3         pass
 4         
 5 地板除
 6 
 7 age = 5
 8 #表示打印age 地板出 6 得出的结果是 0
 9 print(age.__floordiv__(6))
10 #也可以用 print(a//6)
11 
12 0

 1 def __ge__(self, *args, **kwargs): # real signature unknown
 2         """ Return self>=value. """
 3         pass
 4 #如果age = 18 那么 age.__ge__(99),self(表示age,18)>=value(value表示 传进来的99)
 5 #如果age 大于等于等于 17 则 显示True,如果age小于99则显示Fale
 6 
 7 age = 18
 8 
 9 ww = age.__ge__(99)
10 print(ww)
11 输出:Fasle
12 -------------------------
13 age = 18
14 
15 ww = age.__ge__(17)
16 print(ww)
17 输出:True

 1 def __gt__(self, *args, **kwargs): # real signature unknown
 2         """ Return self>value. """
 3         pass
 4 #如果age = 18 那么 age.__gt__(99),self(表示age,18)>value(value表示 传进来的99)
 5 #如果age 大于等于 17 则 显示True,如果age小于99则显示Fale
 6 agr = 18
 7 
 8 ww = agr.__gt__(17)
 9 print(ww)
10 输出: True
11 -----------------------------
12 agr = 18
13 
14 ww = agr.__gt__(99)
15 print(ww)
16 输出: False

1  def __hash__(self, *args, **kwargs): # real signature unknown
2         """ Return hash(self). """
3         pass
4 #哈希值   系统创建对象的时候自动生成的哈希值

1 def __index__(self, *args, **kwargs): # real signature unknown
2         """ Return self converted to an integer, if self is suitable for use as an index into a list. """
3         pass
4 #索引

 1 def __init__(self, x, base=10): # known special case of int.__init__
 2         """
 3         int(x=0) -> integer
 4         int(x, base=10) -> integer
 5         
 6         Convert a number or string to an integer, or return 0 if no arguments
 7         are given.  If x is a number, return x.__int__().  For floating point
 8         numbers, this truncates towards zero.
 9         
10         If x is not a number or if base is given, then x must be a string,
11         bytes, or bytearray instance representing an integer literal in the
12         given base.  The literal can be preceded by ‘+‘ or ‘-‘ and be surrounded
13         by whitespace.  The base defaults to 10.  Valid bases are 0 and 2-36.
14         Base 0 means to interpret the base from the string as an integer literal.
15         >>> int(‘0b100‘, base=0)
16         4
17         # (copied from class doc)
18         """
19         pass
20 # 一个类里面有__init__叫做构造方法,                           
21 如果；
22 age = 19
23 age = int(19)
24 #在python 解释器里 执行int类的时候回自动触发__init__ 方法

 1 def __invert__(self, *args, **kwargs): # real signature unknown
 2         """ ~self """
 3         pass
 4 #位运算  
 5  def __le__(self, *args, **kwargs): # real signature unknown
 6         """ Return self<=value. """
 7         pass
 8 
 9     def __lshift__(self, *args, **kwargs): # real signature unknown
10         """ Return self<<value. """
11         pass
12 
13     def __lt__(self, *args, **kwargs): # real signature unknown
14         """ Return self<value. """
15         pass
16 
17     def __mod__(self, *args, **kwargs): # real signature unknown
18         """ Return self%value. """
19         pass
20 
21     def __mul__(self, *args, **kwargs): # real signature unknown
22         """ Return self*value. """
23         pass
24 
25     def __neg__(self, *args, **kwargs): # real signature unknown
26         """ -self """
27         pass
28 
29     @staticmethod # known case of __new__
30     def __new__(*args, **kwargs): # real signature unknown
31         """ Create and return a new object.  See help(type) for accurate signature. """
32         pass
33 
34     def __ne__(self, *args, **kwargs): # real signature unknown
35         """ Return self!=value. """
36         pass

1 #或 or 相等的  
2 def __or__(self, *args, **kwargs): # real signature unknown
3         """ Return self|value. """
4         pass    

1 def __pos__(self, *args, **kwargs): # real signature unknown
2         """ +self """
3         pass
4         

1 #幂        
2 def __pow__(self, *args, **kwargs): # real signature unknown
3         """ Return pow(self, value, mod). """
4         pass        
5 例；
6 agr = 2
7 print(agr.__pow__(8))
8 #等同于 2**8

  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 
 39     def __add__(self, y):
 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 
178     def __radd__(self, y): 
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