#include "stdio.h"
int main()
{
    char ch;
    printf("1.Morning\n");
    printf("2.Afternoon\n");
    printf("3.Evening\n");
    printf("Input your choose:");
    ch=getchar();
    switch(ch);
    {
    case'1':printf("Good Morning!");break;
    case'2':printf("Good Afternoon!");break;
    case'3':printf("Good Evening!");break;
    default:printf("Slection Wrong!");
    }
return 0;
}

--------------------Configuration: 12 - Win32 Debug--------------------
Compiling...
.c
D:\360Windows7\Microsoft Visual Studio\MyProjects\12\.c(12) : error C2046: illegal case
D:\360Windows7\Microsoft Visual Studio\MyProjects\12\.c(12) : error C2043: illegal break
D:\360Windows7\Microsoft Visual Studio\MyProjects\12\.c(13) : error C2046: illegal case
D:\360Windows7\Microsoft Visual Studio\MyProjects\12\.c(13) : error C2043: illegal break
D:\360Windows7\Microsoft Visual Studio\MyProjects\12\.c(14) : error C2046: illegal case
D:\360Windows7\Microsoft Visual Studio\MyProjects\12\.c(14) : error C2043: illegal break
D:\360Windows7\Microsoft Visual Studio\MyProjects\12\.c(15) : error C2047: illegal default
执行 cl.exe 时出错.

12.exe - 1 error(s), 0 warning(s)

哦  不好意思   我知道哪里错了 switch(ch);这里的；要去掉