使用构造函数来处理“非平凡事物” [英] Using Constructors for "Non Trivial Things"

问题描述

我今天正在读一本叫O'Reilly的编程C＃5.0的书，正在阅读更深入的关于构造函数的内容，我找到了这个;



如果你编写一个构造函数来使用你的类，那么你很可能会惊讶于使用你的类的开发人员，例如将数据添加到数据库或通过
$发送消息。 b $ b network。



这是正确的吗？



我是一个新的C＃程序员，但对此感到惊讶（除非我一直以完全错误的方式学习），并且对这个问题感兴趣。< br $>


当我在CodeProject上看到很多例子时，我发现很多代码都发生在构造函数中（这对我来说有意义吗？）。



感谢您抽出宝贵的时间！



看来我把构造函数与方法混淆了......非常愚蠢的错误。感谢你们所有人的回复时间。

I was reading a book today called "Programming C# 5.0" by O'Reilly and was reading in more depth about constructors, I found this;

"You are likely to surprise developers who use your class if you write a constructor that does
something non-trivial, such as adding data to a database or sending a message over the
network."

Would this be correct?

I'm a newish C# programmer but was surprised by this (unless I have been learning in a completely wrong way) and was interested on the thought on this.

When I look at many examples on CodeProject I find alot of code takes place in the constructors (which would make sense to me?).

Thanks for your time!

It appears I had confused a Constructor with a Method...very silly mistake. I thank all of you for your time for replying.

推荐答案

正如其他人已经注意到的那样，提示就在名称中。构造函数应该按照他们的名字建议：初始化对象，即将对象置于众所周知，可靠的状态，不能少，不再存在。少花钱就是灾难性的，做得更多就是坏事。

As others have already noted, the hint is in the name. Constructors should do what their name suggest: initialize the object, that is put the object in well known, reliable state, no less, no more. Doing less is catastrophic, doing more is bad.

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