分支-20. 计算符号函数的值(10)

#include "stdio.h"int main(){    int n;    scanf("%d",&n);    if (n > 0)        printf("sign(%d) = 1",n);    else if (n == 0)        printf("sign(%d) = 0",n);    else        printf("sign(%d) = -1",n);    return 0;}