本文介绍了命名和可选参数的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
大家好,
我的目的是对方法进行论证。这个论点将成为一个列表。但是这个参数将被用作可选参数,其默认值应该是一个空列表。我怎么声明呢?
例如
Hello all,
My purpose is to have an argument on a method. This argument is going to be a list. But this argument is going to be used as an optional argument and its default value should be a empty list. How can I declare it?
As an example
public void ExampleMethod(int required, string optionalstr = "default string",
int optionalint = 10)
使用它
The usage of it
anExample.ExampleMethod(3, optionalint: 4);
有关详细信息,请参阅 []
所以我需要类似
For more info you can see it in MSDN[^]
So I need something like
public void ExampleMethod(int required, List<string> optionalstrList = "????",
int optionalint = 10)
推荐答案
public void Example(List<something> list = null) { /*...*/ }</something>
但我不确定能清楚地了解你的问题。
But I''m not sure to clearly understand what your problem is.
这篇关于命名和可选参数的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!