我希望我的 swift 代码从字典中获取一个项目。根据我的理解,字典以字母表中的一个字母为键。我想要做的是在调试部分打印一个随机的女孩名字。每次按下按钮时都会打印一个新键和名称。
import UIKit
class ViewController: UIViewController {
var girlsName = ["a": "Jessica Biel", "b": "Gwen Stefani","c":"Jessica Alba" ]
var btn = UIButton()
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view.
[btn].forEach{
$0.translatesAutoresizingMaskIntoConstraints = false
view.addSubview($0)
$0.backgroundColor = UIColor(
red: .random(in: 0.0...1),
green: .random(in: 0.9...1),
blue: .random(in: 0.7...1),
alpha: 1
)
}
btn.frame = CGRect(x: 100, y: 100, width: 100, height: 100)
btn.addTarget(self, action: #selector(newark), for: .touchDown)
}
@objc func newark(){
//print a letter and the corresponding name
print()
}
}