C# (CSharp) Assignment1 StudentMenu示例

示例#1

 public static StudentMenu GetInstance()
 {
     if (uniqueInstance == null)
     {
         uniqueInstance = new StudentMenu();
     }
     return(uniqueInstance);
 }

示例#2

 private MainMenu()
 {
     stamenu = StaffMenu.GetInstance();
     stumenu = StudentMenu.GetInstance();
 }