unsigned int reverse_bit(unsigned int value); 这个函数的返回值value的二进制位模式从左到右翻转后的值。

#include<stdio.h>
#include<stdlib.h>
//位运算进行
unsigned int reverse_bit(unsigned int value) {
	int ret = 0;
	int bit = 0;
	for (int i = 0; i < 32; i++) {
		ret = ret << 1;   // ret 左移一位
		bit = value & 1;  // 取出最后一位赋值给bit;
		value = value >> 1; //value 右移一位;
		ret = ret | bit;  // bit把值传给ret;
	}
	return ret;
}
//循环进行
int round(int n) {
	unsigned int tmp = 0;
	unsigned int sum = 0;
	for (int i = 0; i < 32; i++, n /= 2) {
		tmp = n % 2;
		sum = sum * 2 + tmp;
	}
	return sum;
}


int main() {
	int value = 25;

	unsigned int ret = reverse_bit(value);
	printf("%u\n", ret);  //%u  打印一个无符号的整数
	printf("%u\n", round(value));
	system("pause");
	return 0;
}