self.image.frame.width = 20只给出属性错误 [英] self.image.frame.width = 20 give get only property error

问题描述

我尝试将我的图片视图的宽度更改为20
@IBOutlet weak var image：UIImageView！在viewDidLoad self.image.frame.width = 20
但它给我的错误无法分配给属性： width 是一个获取属性。那是什么意思？？对不起，我是swift的新手，我不知道它是什么意思。请帮助

i tried to change the width of my Image view to 20 @IBOutlet weak var image: UIImageView! using this code in viewDidLoad self.image.frame.width = 20 but it give me error cannot assign to property: width is a get only property. what does that mean?? sorry i am new to swift i do not know what it mean.please help

推荐答案

get-only意味着你只能读这个属性（例如与某些东西比较），但不能改变。要设置宽度，您需要这样：

get-only means you can only read this property (for example to compare with something), but not change. To set width you need this:

self.image.frame.size.width = foo

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