main()
{char choice;textcolor(4);textbackground(14);
for(;;)
{clrscr();
display();
choice=getchar();
switch(choice)
{case'0':printf("\n\nThank You For Using This System.\nPress Any Key To Exit...");getch();exit(0);
case'1':getoriginaldata();break;
case'2':everyaver();break;
case'3':courseaver();break;
case'4':courselevel();break;
case'5':notpass();break;
case'6':aboutme();break;
}
}

不知道啥意思

哥啊   你懂？   
那个不for循环吗   换一种别的循环

程序是用来解决事情的...不是来把简单问题复杂化滴

偶用循环就两种

for
while

其它的就不知道了也不想知道

BS楼主，标题都打错字，那换while(1)这种循环吧……

int main()
{
    char choice;textcolor(4);textbackground(14);
    while(1)
    {
        clrscr();
        display();
        choice=getchar();
        switch(choice)
        {
        case'0':printf("\n\nThank You For Using This System.\nPress Any Key To Exit...");
            getch();
            exit(0);
        case'1':getoriginaldata();break;
        case'2':everyaver();break;
        case'3':courseaver();break;
        case'4':courselevel();break;
        case'5':notpass();break;
        case'6':aboutme();break;
        }
    }
    return 0;
}

晕，原来楼主这意思.....

谢两位大哥了