do {
int e = input.nextInt();
switch (e) {
case 1 :
System.out.println("用户注册");
break;
case 2:
r.initial();
r.StartMenu();
break;
case 3:
System.out.println("退出成功");
break;
default :
System.out.println("请按照选项输入：");
break;
}
} while(input.hasNextInt() == true);
while后面的条件不执行。。。。。是几个意思
int e = input.nextInt();
switch (e) {
case 1 :
System.out.println("用户注册");
break;
case 2:
r.initial();
r.StartMenu();
break;
case 3:
System.out.println("退出成功");
break;
default :
System.out.println("请按照选项输入：");
break;
}
} while(input.hasNextInt() == true);
while后面的条件不执行。。。。。是几个意思
