static void Main(string[] args)
{
User user = new User();
New new1 = new New(user);
Save save = new Save(user);
Open open = new Open(user);
Manager manager = new Manager(user);
Leave leave = new Leave(user);
string flag = "T";
while (flag == "T")
{
Console.WriteLine(" 欢迎使用！");
Console.WriteLine("-------------------------------------------------");
Console.WriteLine("- 1.新建笔记 -");
Console.WriteLine(" 2.保存笔记 -");
Console.WriteLine(" 3.打开笔记 -");
Console.WriteLine("- 4.分类管理 -");
Console.WriteLine("- 5.退出 -");
Console.WriteLine("-------------------------------------------------");
Console.Write("请输入要进行的操作（1-5）：");
int num = int.Parse(Console.ReadLine());//从键盘输入操作
user.Message(num);
flag = "f";
// Console.ReadLine();
Console.WriteLine("是否继续(T继续，其他键退出)");
flag = Console.ReadLine();
//switch(order)
//{
// case 1:
// New new1 = new New();
// new1.newnote();
// break;
// case 2:
// Save save1 = new Save();
// save1.savenote();
// break;
// case 3:
// Open open1 = new Open();
// open1.opennote();
// break;
// case 4:
// Manager manager1 = new Manager();
// manager1.managernote();
// break;
// case 5:
// Leave leave1 = new Leave();
// leave1.leavenote();
// break;
// flag = false;
// break;
// default:
// Console.WriteLine("输入有误，请重试！");
// break;
//}
}
}