java与C#构造函数

JAVA: 先执行父类的构造函数，然后是引用对象的构造函数（必须有new声明实际类型）,然后是自己的构造函数。

public class Test {  public static void main(String[] args)   {  Child child = new Child();  }}

class Parent {   Parent()    {    System.out.println("to construct Parent.");   }  }

class Child extends Parent {   Child()    {     System.out.println("to construct Child.");   }   Delegatee delegatee = new Delegatee(); }

class Delegatee {  Delegatee()   {    System.out.println("to construct Delegatee.");   }}

结果是:

to construct Parent.to construct Delegatee.to construct Child.

而C#的构造函数执行顺序是:先引用对象，在父类，再子类

结果是to construct Delegatee.to construct Child.to construct Parent.