python中二进制整数

Given an integer number and we have to find necessary bits to represent it in binary in python.

给定一个整数，我们必须找到必要的位以用python二进制表示它 。

To find necessary bits to represent a number – we use "bit_length()" method of "int" class, it is called with an integer object and returns the total number of bits to require to store/represent an integer number in binary.

为了找到表示数字的必要位，我们使用“ int”类的“ bit_length()”方法 ，将其与整数对象一起调用，并返回以二进制存储/表示整数所需的位数。

Note: If the value is 0, bit_length() method returns 0.

注意：如果值为0，则bit_length()方法将返回0。

Example:

例：

    Input:
num = 67 #binary: 1000011
# function call
print(num.bit_length())
Output:
7

Python代码查找表示整数的位 (Python code to find bits to represent an integer number)

# Python program to find number of bits 
# necessary to represent an integer in binary
# input a number
num = int(input("Enter an integer number: "))
# total bits to represent number
bits = num.bit_length()
print("bits required to store ", num, " = ", bits)
print("binary value of ", num, " is = ", bin(num))

Output

输出量

First run:
Enter an integer number: 67
bits required to store  67  =  7
binary value of  67  is =  0b1000011
Second run:
Enter an integer number: 3
bits required to store  3  =  2
binary value of  3  is =  0b11

翻译自: https://www.includehelp.com/python/find-number-of-bits-necessary-to-represent-an-integer-in-binary.aspx

python中二进制整数