用VC++怎么运行不起来啊！！！
代码如下：
#include<stdio.h>
#include<string.h>
void main()
{
    for( ; ; )
    {    
        switch(menu_selsct())
    
        { case 1:
            printf("通讯录链表的建立\n");
            break;
          case 2:
            printf("通讯者结点的插入\n");
            break;
          case 3:
            printf("通讯者结点的查询\n");
            break;
          case 4:
            printf("通讯者结点的删除\n");
            break;
          case 5:
            printf("通讯录链表的输出\n");
            break;
          case 0:
            printf("再见！\n");
            break;
           return;
        }
    }
}
#include<stdio.h>
#include<string.h>
void main()
{
    for( ; ; )
    {    
        switch(menu_selsct())
    
        { case 1:
            printf("通讯录链表的建立\n");
            break;
          case 2:
            printf("通讯者结点的插入\n");
            break;
          case 3:
            printf("通讯者结点的查询\n");
            break;
          case 4:
            printf("通讯者结点的删除\n");
            break;
          case 5:
            printf("通讯录链表的输出\n");
            break;
          case 0:
            printf("再见！\n");
            break;
           return;
        }
    }
}