void MainMenu()
{

printf("---------------------------------------------------\n");
printf("                    Main Menu       \n");
printf("---------------------------------------------------\n");
printf("                    1----sort       \n");
printf("                    2---insert      \n");
printf("                    3---delete      \n");
printf("                    4---resort      \n");
printf("                    5----exit       \n");
printf("---------------------------------------------------\n");
printf("please make your choice from 1~5:");

}
main()
{int i,d;
for(i=1;i<=5;i++)
{MainMneu();
scanf("%d",&d);
switch(d)
{ case 1:sort();break;
  case 2:insert();break;
  case 3:delete();break;
  case 4：resort（）；break；
  case 5:break;
  default:printf("wrong!");break;
}
}
}
帮忙把中间sort（排序）insert（插入一个数）delete（删除一个数）resort（反序）这几个调用函数写出来吧，小弟感激不尽！