}
cout<<"\n\t\t****************************************\n" ;
cout<<"\t\t\t 1、统计数学成绩"<<endl ;
cout<<"\t\t\t 2、统计语文成绩"<<endl ;
cout<<"\t\t\t 3、统计英语成绩" ;
cout<<"\n\t\t****************************************\n"<<endl ;
cout<<"\t\t请选择：" ;
cin>>x ;
switch(x)
{
case 1 :
{
cout<<"\n\t\t请输入分数段的起始分数和终止分数：" ;
cin>>m ;
cin>>n ;
for(p = Head ; p != End ; p = p->next)
if(p->math >=m && p->math <= n)
{
count ++ ;
if(count == 1)
cout<<endl<<HEADER1<<HEADER2<<HEADER3 ;
p->show() ;
}
cout<<"\n\t\t数学成绩在"<<m<<"--"<<n<<"的学生共有"<<count<<"人！\n"<<endl ;
cout<<"输入任意字符，继续......." ;
getch() ;
} ; break ;
case 2:
{
cout<<"\n\t\t请输入分数段的起始分数和终止分数：" ;
cin>>m ;
cin>>n ;
for(p = Head ; p != End ; p = p->next)
if(p->chinese >=m && p->chinese <= n)
{
count ++ ;
if(count == 1)
cout<<endl<<HEADER1<<HEADER2<<HEADER3 ;
p->show() ;
}
cout<<"\n\t\t语文成绩在"<<m<<"--"<<n<<"的学生共有"<<count<<"人！\n"<<endl ;
cout<<"输入任意字符，继续......." ;