#include <stdio.h> int main() { int date = 0;//日期 scanf("%d", &date);//输入星期几 switch(date) { 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: break; } return 0; }