24、数字猜谜应用开发：协议与委托实现

数字猜谜应用开发：协议与委托实现

在开发数字猜谜应用时，我们需要实现一系列功能，包括处理用户猜测、生成随机数、初始化变量以及设置视图初始状态等。下面将详细介绍具体的实现步骤。

1. 处理用户猜测和生成随机数的函数

我们需要添加代码来处理用户猜测数字的情况以及生成随机数。以下是相应的代码：

//  function called from the GuessInputViewController when the user taps on the Save Button button
func userDidFinish(_ controller: GuessInputViewController, guess:  String) {
    userGuessLabel.text = "The guess was " +  guess
    previousGuess = guess
    let numberGuess = Int(guess)
    if (numberGuess! > randomNumber){
        resultLabel.text = "Guess too high"
    }
    else if (numberGuess! < randomNumber) {
        resultLabel.text = "Guess too low"
    }
    else {
        resultLabel.text = "Guess is correct"
        playAgainButton.isHidden = false //show th