编辑代码

#include <stdio.h>

int main() {
    int num;
    printf("请输入 1~7 的数字: ");
    scanf("%d", &num);

    switch (num) {
        case 1:
            printf("Monday\n");
            break;
        case 2:
            printf("Tuesday\n");
            break;
        case 3:
            printf("Wednesday\n");
            break;
        case 4:
            printf("Thursday\n");
            break;
        case 5:
            printf("Friday\n");
            break;
        case 6:
            printf("Saturday\n");
            break;
        case 7:
            printf("Sunday\n");
            break;
        default:
            printf("出错\n");
    }

    return 0;
}