#include <stdio.h> void main () { int weekday; printf("今天的食谱 请输入星期几 "); scanf("%d",&weekday); switch (weekday) { case 1:printf("星期一:青菜 "); break; case 2:printf("星期二:鸡 "); break; case 3: printf("星期三:鱼 "); break; case 4: printf("星期四:肉 "); break; case 5:printf("星期五:鸡蛋 "); break; case 6: printf("星期六:海鲜 "); break; case 7: printf("星期日:豆制品 "); break; default: printf("输入有误 "); break; } }