为什么我们在变量名中使用_? [英] Why do we use _ in variable names?

问题描述

我见过像 _ image 这样的变量，想知道 _ 是什么意思?

I have seen variables like _ image and was wondering what _ meant?

推荐答案

它不意味着任何事情.将私有成员变量与方法和公共属性分开是一种常见的命名约定.例如:

It doesn't mean anything. It is rather a common naming convention for private member variables to keep them separated from methods and public properties. For example:

class Foo
{
   private int _counter;

   public int GetCounter()
   {
      return _counter;
   }

   public int SetCounter(int counter)
   {
      _counter = counter;
   }
}

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