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- black_lq 2017-09-13
- #selector
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- 措言 2017-06-12
- click()
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- 措言 2017-06-12
- import UIKit import PlaygroundSupport class ViewController: UIViewController{ override func viewDidLoad(){ super.viewDidLoad() self.view.backgroundColor = UIColor.yellow self.view.frame = CGRect(x: 0, y: 0, width: 300, height: 400) let button: UIButton = UIButton(frame: CGRect(x: 0, y: 0, width: 80, height: 40)) button.center = self.view.center button.setTitle("click me!", for: .normal) button.setTitleColor(.blue, for: .normal) button.addTarget(self, action:"click", for: .touchUpInside) button.addTarget(self, action:#selector(click), for: .touchUpInside) self.view.addSubview(button) } func click(){ if view.backgroundColor == .yellow { view.backgroundColor = .cyan } else { view.backgroundColor = .yellow } } }
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- 措言 2017-06-12
- import UIKit import PlaygroundSupport class ViewController: UIViewController{ override func viewDidLoad(){ super.viewDidLoad() self.view.backgroundColor = UIColor.yellow self.view.frame = CGRect(x: 0, y: 0, width: 300, height: 400) let button: UIButton = UIButton(frame: CGRect(x: 0, y: 0, width: 80, height: 40)) button.center = self.view.center button.setTitle("click me!", for: .normal) button.setTitleColor(.blue, for: .normal) button.addTarget(self, action:"click", for: .touchUpInside) button.addTarget(self, action:#selector(click), for: .touchUpInside) self.view.addSubview(button) } }
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- 吹泡泡的星星 2016-12-09
- 使用playground
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- ichang 2016-11-29
- 可视化最后设置属性.view
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- ichang 2016-11-29
- 可视化
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