cin>>n;
while(n<1||n>4) {
cout<<"操作错误，请输入正确的操作序号!"<<endl; cout<<"→"; cin>>n; } switch(n) {
case 1: set_account();//开户 break;
case 2:enter_account();//登录
break;
case 3: del_account();//注销 break;
case 4: exitYH();//退出 break; }
cin.get();//输入流类istream的成员函数 }
while(true); }
void YH::enter_account() {int id;
cout<<"请输入帐号:"; cin>>id; int flag = 1;
int i = 0; //__page_break__ while((i<acnum)&&(flag)) //循环查找 {
if(id==account[i]->get_id()) flag = 0; else i++; } if(flag) {
cout<<"帐号不存在!"<<endl; return; }
cout<<"请输入密码:";