写一个函数，返回二进制中1的个数

//写一个函数，返回二进制中1的个数#include<stdio.h>#include<stdlib.h>int count_one_bit(unsigned int i){int count = 0;while (i){++count;i = i >> 1;}return count;}int main(){int ret=count_one_bit(15);printf("%d\n", ret);system("pause");return 0;}