Fun Facts App - IOS [关闭]

Question

谁能帮我处理这段代码？根据Xcode 存在三个问题：

import UIKit

class ViewController: UIViewController {

@IBOutlet weak var funFactLabel: UILabel!
@IBOutlet weak var funFactButton: UIButton!

    let factProvider = FactProvider()
    let colorProvider = BackgroundColorProvider()

    override func viewDidLoad() {
        super.viewDidLoad()

        funFactLabel.text = factProvider.randomFact()
        }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
        }

        @IBAction func showFact() {
       funFactLabel.text = factProvider.randomFact()
            let newColor = UIColor(red: 223/255.0, green: 86/255.0, blue: 94/255.0, alpha: 1.0)`enter code here`

            view.backgroundColor = randomColor
            funFactButton.tintColor = randomColor
     }
}

Answer 1

您的代码中有 3 个主要问题，都在 showFact() 函数中。

首先，从newColor 声明的末尾删除"enter code here"。

其次，randomColor 是一个未声明的变量。我想你想使用newColor，不是吗？

@IBAction func showFact() {
        funFactLabel.text = factProvider.randomFact()
        let newColor = UIColor(red: 223/255.0, green: 86/255.0, blue: 94/255.0, alpha: 1.0)
        view.backgroundColor = newColor
        funFactButton.tintColor = newColor
 }