将 [(key: String, value: String)] 转换为 [String:String]

我想将 [(key: String, value: String)] 转换为 [String:String] 可以吗？如果是的话我怎么做？谢谢

var KeyValuePair: [(key: String, value: String)] = [(key: "2017 01 04", value: "143.65"), (key: "2017 01 05", value: "140.78"), (key: "2017 01 06", value: "150.23")]

in

var dictionary: [String:String] =  ["2017 01 04":"143.65", "2017 01 05":"140.78", "2017 01 06":"150.23"]

您只需要迭代元组数组并使用元组的值设置字典的键值对。

var keyValuePairs: [(key: String, value: String)] = [(key: "2017 01 04", value: "143.65"), (key: "2017 01 05", value: "140.78"), (key: "2017 01 06", value: "150.23")]

var dictionary = [String:String]()
keyValuePairs.forEach{
    dictionary[$0.0] = $0.1
    //since you have named tuples, you could also write dictionary[$0.key] = $0.value
}
print(dictionary)

请确保您符合 Swift 命名约定，即变量名采用小驼峰命名。