快速代码改进

Question

我对Swift和Xcode 6很新，只是制作了一个应用程序。现在我正在尝试改进我的代码，我知道有一种方法可以缩短代码，我只是不知道如何。

button1.layer.cornerRadius = 10
button1.layer.borderWidth = 1
button1.layer.borderColor = UIColor.whiteColor().CGColor

button2.layer.cornerRadius = 10
button2.layer.borderWidth = 1
button2.layer.borderColor = UIColor.whiteColor().CGColor

button3.layer.cornerRadius = 10
button3.layer.borderWidth = 1
button3.layer.borderColor = UIColor.whiteColor().CGColor

button4.layer.cornerRadius = 10
button4.layer.borderWidth = 1
button4.layer.borderColor = UIColor.whiteColor().CGColor

button5.layer.cornerRadius = 10
button5.layer.borderWidth = 1
button5.layer.borderColor = UIColor.whiteColor().CGColor

Answer 1

您可以创建所有按钮的数组，然后循环遍历它们。

var buttons = [button1, button2, button3, button4, button5]

for button in buttons {
    button.layer.cornerRadius = 10
    button.layer.borderWidth = 1
    button.layer.borderColor = UIColor.whiteColor().CGColor
}