Question

说我有一个变量

    function configureChannel( obj, Channel )
       myStruct.Channel = Channel;
       save -append registers.mat myStruct;
    end  

    function updateConfiguration( obj, dataPath )
       myStruct.EN = 1;
       save -append registers.mat myStruct;
    end

现在让我们有一个数组＆lt;串GT;

let stringArray = "[\"You\", \"Shall\", \"Not\", \"PASS!\"]"

// if I show this, it would look like this
print(stringArray)
["You", "Shall", "Not", "PASS!"]

现在说我该怎么做才能转换变量＆＃39; stringArray＆＃39;到＆＃39;数组＆lt;串GT;＆＃39;

Answer 1

答案是使用NSJSONSerialization转换字符串

感谢Vadian提示

let dataString = stringArray.dataUsingEncoding(NSUTF8StringEncoding)
let newArray = try! NSJSONSerialization.JSONObjectWithData(dataString!, options: []) as! Array<String>

for string in newArray {
    print(string)
}

瞧，你有它，它现在是一个字符串数组

Answer 2

Swift 4的小改进。

试试这个：

// Array of Strings
let array: [String] = ["red", "green", "blue"]
let arrayAsString: String = array.description
let stringAsData = arrayAsString.data(using: String.Encoding.utf16)
let arrayBack: [String] = try! JSONDecoder().decode([String].self, from: stringAsData!)

分别对于其他数据类型：

// Set of Doubles
let set: Set<Double> = [1, 2.0, 3]
let setAsString: String = set.description
let setStringAsData = setAsString.data(using: String.Encoding.utf16)
let setBack: Set<Double> = try! JSONDecoder().decode(Set<Double>.self, from: setStringAsData!)

将Array <string>转换为String然后返回Array <string>

2 个答案: