package src; import java.util.Scanner; import java.util.concurrent.TimeUnit; public class Main { public static void main(String[] args) { // 用户预加载 SysFunc.init(); Scanner scanner = new Scanner(System.in, "GBK"); while(true){ // 登录界面 SysFunc.login(scanner); // 出题界面 SysFunc.Operate(scanner); // 退出选项 System.out.println("是否返回登陆(y/n)?"); String choice = scanner.nextLine(); if (choice.charAt(0) == 'y') { try { TimeUnit.SECONDS.sleep(1); } catch (InterruptedException e) { Thread.currentThread().interrupt(); } } else if (choice.charAt(0) == 'n') { System.out.println("感谢您的使用"); break; } else { System.out.println("无效输入, 正在返回登陆界面"); } } } }