为什么 do while 循环不会中断？

Question

下面的代码有问题

switch(adminChoice){
    case 1:
        do{
            cout<<"\nEnter Student ID: ";
            cin>>studentId;
            cout<<"\nEnter Student Name: ";
            cin>>studentName;
            cout<<"\nEnter Student Password: ";
            cin>>studentPassword;
            cout<<"\nAdd another account? y/n ";
            cin>>adminSubChoice;
        }
        while(adminSubChoice!='n' || adminSubChoice !='N');
        break;
    case 2:

当我为 char 变量 adminSubChoice 输入 n 或 N 时，do while 不会中断，它会一次又一次地运行。谁能告诉我我做错了什么？？

Answer 1

条件adminSubChoice!='n' || adminSubChoice !='N' 将始终为真，因为没有任何字符会同时是n 和N。

条件应该是adminSubChoice!='n' && adminSubChoice !='N'。