#include<stdio.h> int main() { char i,j; printf("请输入第一个字母:\n"); scanf("%c",&i); getchar(); switch(i) { case 'm': printf("monday\n"); break; case 'w': printf("wednesday\n"); break; case 'f': printf("friday\n"); break; case 't': printf("请输入下一个字母\n"); scanf("%c",&j); if (j=='u') { printf("tuesday\n"); break; } if (j=='h') { printf("thursday\n"); break; } case 's': printf("请输入下一个字母\n"); scanf("%c",&j); if (j=='a') { printf("saturday\n");break; } if (j=='u') { printf("sunday\n"); break; } default : printf("error\n"); break; } return 0; }