《预期声明》userDefaults 中的 Swift 错误 [英] "Expected Declaration" Error in Swift in userDefaults

问题描述

我正在尝试将 placeHolderValue 保存在 NSUserDefaults 中，但我在第三行收到了预期的声明错误.

I am trying to save the placeHolderValue in NSUserDefaults, but I am getting an expected declaration error in the third line.

 let placeHolderValue = 1000
 var userDefaults = NSUserDefaults.standardUserDefaults()
 userDefaults.setValue(placeHolderValue, forKey: "placeholder")
 userDefaults.synchronize()

我到处找都找不到有类似问题的人.我究竟做错了什么?谢谢！

I've looked everywhere and can't find someone with a similar problem. What am I doing wrong? Thanks!

推荐答案

我想我的函数中没有上面的代码.一旦我将它放在我的类声明中的一个函数中，一切运行顺利:

I think I didn't have the code above within a function. Once I placed it inside a function within my class declaration everything ran smoothly:

func test() {

    let placeHolderValue = 1000
    var userDefaults = NSUserDefaults.standardUserDefaults()
    userDefaults.setInteger(placeHolderValue, forKey: "placeholder")


    }

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