默认太复杂，无法使用基本的“+”运算符编译 [英] Defaults too complex to compile with basic '+' operator

问题描述

func updateTotalScore() -> Int {
        var totalScoreDefault = NSUserDefaults.standardUserDefaults()

        var highScoreAB1 = defaults.integerForKey("highScoreAB1")

        var highScoreAB2 = defaults.integerForKey("highScoreAB2")

        var highScoreAB3 = defaults.integerForKey("highScoreAB3")

        var highScoreAB4 = defaults.integerForKey("highScoreAB4")
        var highScoreAB5 = defaults.integerForKey("HighScoreAB5")
        var highScoreAB6 = defaults.integerForKey("highScoreAB6")
        var highScoreAB7 = defaults.integerForKey("highScoreAB7")
    totalScoreDefault =
      (defaults.integerForKey("highScoreAB1") + defaults.integerForKey("highScoreAB2")) + (defaults.integerForKey("highScoreAB3") +   defaults.integerForKey("highScoreAB4")) + (defaults.integerForKey("highScoreAB5") + defaults.integerForKey("highScoreAB6")) + defaults.integerForKey("highScoreAB7") }

添加多个键， score default将抛出以下错误。我试着把它们组合在一起成对，这没有工作。先谢谢你。这是从昨天的一个职位的延续。

Adding multiple keys to get a total score default throws the following error. I tried grouping them together into pairs, and that did not work. Thank you in advance. This is a continuation from a post from yesterday.

推荐答案

就像Logan的回答一样，因为你说你对复杂表达式编译错误有问题。这应该编译：

Just as an addition to Logan's answer, because you are saying that you have problems with "complex expression" compiler error. This should compile:

func updateTotalScore() -> Int {

           let defaults = NSUserDefaults.standardUserDefaults()

           let totalScoretDefault =
                 defaults.integerForKey("highScoreAB1") +
                 defaults.integerForKey("highScoreAB2") +
                 defaults.integerForKey("highScoreAB3") +
                 defaults.integerForKey("highScoreAB4") +
                 defaults.integerForKey("highScoreAB5") +
                 defaults.integerForKey("highScoreAB6") +
                 defaults.integerForKey("highScoreAB7")

           return totalScoretDefault

}

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