无法转换类型值 '[String : String]'预期参数 类型类

Question

我在API类中具有造痕。我想创建"加密"功能。"加密"方法将一个参数作为[String: String]。但是let encr = encryption(parameters)有错误 - 无法转换类型'[String : String]'预期参数的值类型" API"

如何解决这个问题？

谢谢。

代码是：

class API {
 class func createToken() {
    var parameters = [
        "key1": "value1",
        "key2":"value2",
        "key3": "value3"
    ]
    let encr = encryption(parameters)
    let newParameters = [
        "key1": "value1",
        "key2":"value2",
        "key3": "value3",
        "key4" : encr
    ]
 }
 func encryption(parameters: [String:String]) -> String {
    let sortedDict = parameters.sort { $0.0 < $1.0 }
    var paramString = ""
    for i in sortedDict {
        paramString.addString(i.1)
    }
    paramString.addString("")
    let encr = paramString.sha256()
    return encr
 }
}

Answer 1

我重新分配了您的课程。现在两种方法都是class method。

class API {
    class func createToken() {
        let parameters = [
            "key1": "value1",
            "key2":"value2",
            "key3": "value3"
        ]
        let encr = API.encryption(parameters)
        let newParameters = [
            "key1": "value1",
            "key2": "value2",
            "key3": "value3",
            "key4" : encr
        ]
        // What do you want to do with newParameters?
    }
    class func encryption(parameters: [String:String]) -> String {
        let sortedDict = parameters.sort { $0.0 < $1.0 }
        let paramString = sortedDict.map { $0.1 }.reduce("") { $0 + $1 }
        let encr = paramString.sha256()
        return encr
    }
}