是否存在属性的自动初始化? [英] Is there automatic initialization for attributes?

问题描述

我想知道属性是在对象初始化期间自动设置为nil还是具有随机值?

I was wondering if attributes were automatically set to nil during an object's initialization or they have random values?

推荐答案

如果这个问题指示了Objective-C，我想说的是在声明变量时应初始化变量的 all 值.

If this question is indicative of Objective-C, I'd say that you should initialize all values of a variable when you declare them.

在声明变量时显式初始化变量有两个好处:

Explicitly initializing variables when they're declared gives you two benefits:

1. 变量的值没有任何歧义.
2. 其他读取您的代码的可读性.

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