swift - NSUserDefaults valueForKey 错误

Question

我想在一个简单的游戏中保存高分。我是 swift 2 的新手，不确定我做错了什么。我收到错误消息“‘int’类型的值没有‘valueForKey’的成员。这是我上次尝试失败时的代码。

var highScoreDefault = NSUserDefaults.standardUserDefaults()

    if(highScoreDefault.valueForKey("highScore") != nil){
        highScore = highScore.valueForKey("highScore") as NSInteger! //error here
    }


  newFunc
        score += 1
        if (score > highScore){
            highScore = score
            var highScoreDefault = NSUserDefaults.standardUserDefaults()
            highScoreDefault.setValue(highScore, forKey: "highScore")
            highScoreDefault.synchronize()
        }
        highscoreLbl.text = "\(highScore)"

Answer 1

你必须像这样保存它:NSUserDefaults.standardUserDefaults().setInteger(highScore, forKey: "highScore")

并像这样检索它:var highScore: Int = NSUserDefaults.standardUserDefaults().integerForKey("highScore")