int main()
{
char c[10];
printf("Do you love me?\n");
printf("请输入yes或no\n");
gets(c);
if(strcmp(c,"yes")==0)
printf("me too!\n");
else
printf("请重新输入");
char c[10];
printf("请输入yes或no\n");
gets(c);
if(strcmp(c,"yes")==0)
printf("me too!\n");
else
printf("请重新输入");
}