C＃构造函数执行顺序 [英] C# constructor execution order

问题描述

在C＃中，当您执行

Class(Type param1, Type param2):base(param1) 

是先执行的类的构造函数，然后调用超类构造函数，还是先调用基类构造函数？

is the constructor of the class executed first, and then the superclass constructor is called or does it call the base constructor first?

推荐答案

顺序是：

• 成员变量被初始化为层次结构中所有类的默认值

然后从最多派生类开始：

Then starting with the most derived class:

• 为最派生类型执行变量初始值设置


• 构造函数链


• 这个类中的链中的构造函数体被执行（注意，如果它们与 Foo（）：this（...）等链接，可以多于一个

• Variable initializers are executed for the most-derived type
• Constructor chaining works out which base class constructor is going to be called
• The base class is initialized (recurse all of this :)
• The constructor bodies in the chain in this class are executed (note that there can be more than one if they're chained with Foo() : this(...) etc

请注意，在Java中，基类在变量初始化运行之前被初始化。如果您曾经移植任何代码，这是一个重要的区别：）

Note that in Java, the base class is initialized before variable initializers are run. If you ever port any code, this is an important difference to know about :)

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