c#-4.0 – 在c#中继承的调用构造函数的顺序

我刚刚读过C#中的继承,我遇到了构造函数,并写过,构造函数按照派生顺序执行.这是什么意思？那个基类的构造函数将被称为first或Derived类.

解决方法

一个基类构造函数被称为first.Refer到以下示例

// Demonstrate when constructors are called.
using System;

// Create a base class.
class A {
    public A() {
        Console.WriteLine("Constructing A.");
    }
}

// Create a class derived from A.
class B : A {
    public B() {
        Console.WriteLine("Constructing B.");
    }
}

// Create a class derived from B.
class C : B {
    public C() {
        Console.WriteLine("Constructing C.");
    }
}

class OrderOfConstruction {
    static void Main() {
        C c = new C();
    }
}

The output from this program is shown here:

Constructing A.
Constructing B.
Constructing C.