私有财产的命名约定 [英] Naming convention for Private Properties

问题描述

我已经看到下划线用作私有属性的前缀

I've seen underscore used as a prefix for private properties

private var _aPrivateVar: String = "I am private"

我看过他们没用过

private var aPrivateVar: String = "I am private"

从语法上讲，这没有什么区别，我的首选项是不使用它们.但是， Swift 中接受的约定是什么，以便我养成正确的习惯?

Syntactically, it makes no difference and my preference is to not use them. However, what's the accepted convention in Swift so that I pick the right habit up?

推荐答案

在此快速指南样式，您可以找到类似的参考文献:

In this Swift Guide style, you can find a similar reference:

private var centerString: String {
  return "(\(x),\(y))"
}

在 快速编程语言书籍(swift 4 beta版) (链接到)，您还可以找到以下示例:

In The swift Programming Language book (swift 4 beta) (link to ), you can also find these examples:

第812页:

private var privateInstance = somePrivateClass()

第822页:

private var privateVariable = 12

摘录自:Apple Inc."Swift编程语言(Swift 4 beta)." iBooks.

Excerpt From: Apple Inc. "The Swift Programming Language (Swift 4 beta)." iBooks.

我确实认为第二种选择是正确的方法.

I do believe that the second option is the correct way to go.

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