编辑代码

#include <stdio.h>
int main(){
    int week=0;
    printf("请输入一个数字(1-7);");
    scanf("%d",&week);
    if(week>=1 &&week <=7);

        if(week==1){
            //这里是week等于1的情况
            printf("星期一\n");
        }else if(week==2){
            //这里是week等于2的情况
            printf("星期二\n");
        }else if(week==3){
            //这里是week等于3的情况
            printf("星期三\n");
        }else if(week==4){
            //这里是week等于4的情况
            printf("星期四\n");
        }else if(week==5){
            //这里是week等于5的情况
            printf("星期五\n");
        }else if(week==6){
            //这里是week等于6的情况
            printf("星期六\n");
        }else if(week==7){
            //这里是week等于7的情况
            printf("星期天\n");
        }else {
            printf("你输入的数字有误\n");
        }
        return 0;
    }