2.1 if语句

#define _CRT_SECURE_NO_WARNINGS
#include<stdio.h>

int main()
{
    int i;
    printf("您老贵庚啊：");
    scanf("%d", &i);
    
    if(i>=18)
    {
        printf("请进门！\n");
        printf("希望玩得高兴！\n");
    }else
    {
        printf("不能进门！\n");
        printf("慢走，不送！\n");
    }
    return 0;
}

 

https://github.com/mzdbxwg/xiao/blob/main/2.1%20if%E8%AF%AD%E5%8F%A5.c