using System;

class Constructor1App //定义一个名为Constructor1App的类 { Constructor1App() //创建一个构造器 { Console.WriteLine("[Constructor1App.Constructor1App]"+"I'm the constructor"); }

public static void Main() { Console.WriteLine("\n[Main] Instantiating a"+"Constructor1 object..."); Constructor1App app=new Constructor1App();//声明一个对象类型 Console.ReadLine(); } }

再看一个 using System;

class BaseClass { public BaseClass()//定义一个构造器 { Console.WriteLine("[BaseClass.BaseClass]"+"Constructor called"); } }

class DerivedClass:BaseClass//这句话是什么意思？？？ { public DerivedClass()//定义另一个构造器 { Console.WriteLine("[DerivedClass.Derived]"+"Constructor called"); } } class DefaultInitializer { public static void Main() { Console.WriteLine("[Main] Instantiating a"+"DerivedClass object"); DerivedClass derived=new DerivedClass();//声明一个对象 Console.ReadLine(); } }

其余理解是正确的