2345/main.cpp

#include <iostream>
#include "MangerBook.h"

using namespace std;

int main()
{
    MangerBook gm;// 实例化管理员
    int select;//用户选择
    while (true)
    {
        gm.ShowMenu();
        cout << "请选择要执行的操作" << endl;
        while (true)
        {
            cin >> select;
            if (!cin) {
                cout << "ERROR!" << endl;
                cin.clear();
                select = 1024;
                cin.get();
            }

            if (select >= EXIT || select <= OTHERS) {
                break;
            }
            else {
                cout << "指令非法，请重新输入！" << endl;
                system("system");
                gm.ShowMenu();
                cout << "请选择要执行的操作" << endl;
            }
        }
        switch (select)
        {
        case EXIT: gm.Exit_Sys();           break;
        case LOANRANKING: gm.LoanRanking(); break;
        case ADDBOOK: gm.AddBook();         break;
        case SEARCHBOOK:gm.SearchBook();    break;
        case SELECTBOOK:gm.SelectBook();    break;
        case LOANBOOK:gm.LoanBook();        break;
        case RETURNBOOK:gm.ReturnkBook();   break;
        case SHOWBOOK:gm.ShowBook();        break;
        default:system("cls");              break;
        }
    }
    return 0;
}