[英]How to compare CGPoints In swift?
I have 2 CGPoint
like : 我有2个
CGPoint
喜欢:
let a : CGPoint = CGPointMake(1, 1)
let b : CGPoint = CGPointMake(1, 1)
if Both are same then I want to do something. 如果两者都相同那么我想做点什么。
This is just an example but I want to compare this two CGPoint and I found this question which is already asked but this is on objective-C so can anybudy tell me how can I do this is swift? 这只是一个例子,但我想比较这两个CGPoint,我发现这个问题已经被问到但这是在Objective-C上所以任何研究都可以告诉我,我怎么能这样做是快速的?
CGPoint
already implements the Equatable
protocol, so you can compare using the ==
operator: CGPoint
已经实现了Equatable
协议,因此您可以使用==
运算符进行比较:
if a == b {
}
Small example for you: 小例子:
let a : CGPoint = CGPointMake(1, 1)
let b : CGPoint = CGPointMake(1, 1)
if (a == b)
{
var str = "YES"
}
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