python基本数据类型之整型

整形常带功能

1.int

将其他数据类型变成整型，如字符串

1 a = "123"  
2 v = int(a) 
3 print v
1 num = "b"
2 v = int(num, base=16) # base是指将数字转为16进制
3 print(v)

 

2.bit_length:显示整数转为二进制时的长度

1 bit_length(...)
2       int.bit_length() -> int
3        
4        Number of bits necessary to represent self in binary.
5        >>> bin(37)
6        '0b100101'
7        >>> (37).bit_length()
8        6
1 age = 5
2 r = age.bit_length()
3 print(r)
1 >>> 3

 

posted @ 2018-07-21 18:14  fengpiaoluoye  阅读(572)  评论(0)  编辑  收藏  举报