关于阿里云API的Swift语言桥接，首先要进行APPCODE的获取，这里就不多废话了，阿里云官网有教程。
阿里云控制台；https://home.console.aliyun.com/new#/

接下来直接上代码：

funcpostData(_text:String,_completionHandler:@escaping(_result: [String:Any]) ->Void)  {

    let host = "http://gjccq.market.alicloudapi.com/rest/160601/text_analysis/key_words_extraction.json"

    varrequest =URLRequest(url:URL(string: host)!)

    request.httpMethod="POST"

    //请求添加头Header
    request.addValue("APPCODE 你的APPCODE", forHTTPHeaderField:"Authorization")

    //添加Json返回格式
    request.addValue("application/json; charset=UTF-8", forHTTPHeaderField: "Content-Type")

    request.cachePolicy = URLRequest.CachePolicy(rawValue: 1)!

    request.timeoutInterval = 5

    let body = "{\"inputs\":[{\"text\":{\"dataType\":50,\"dataValue\":\"\(text)\"},\"config\":{\"dataType\":50,\"dataValue\":\"{\\\"topN\\\":3,\\\"similarityType\\\":\\\"lcs\\\",\\\"delimiter\\\":\\\"。！？\\\"}\"}}]}"

    print(#line,body)

    request.httpBody= body.data(using:String.Encoding.utf8)!

    URLSession.shared.dataTask(with: request) { data, response, errorin

        if error == nil &&  data != nil{

            do{

                letdic =tryJSONSerialization.jsonObject(with: data!, options: [])as! [String:Any]

                letarray = dic["outputs"]as! [Dictionary]

                completionHandler(array[0])

            }catch  {

                print(#line, error)

            }

            return

        }

        }.resume() //[task resume];


}

这个是封装好的API桥接方法，接下来是调用：

  postData("你要分析的文本") { (result) in
            
            DispatchQueue.main.async(execute: {() -> Void in

                print(#line, result)
                let outputValue = result["outputValue"] as! [String:Any]
                
                let dataValue = outputValue["dataValue"] as! String
                
                var resultDic: [String: Any]? = nil

                if let anEncoding = dataValue.data(using: .utf8) {
                    resultDic = try! JSONSerialization.jsonObject(with: anEncoding, options: []) as? [String: Any]
                }
                
                let wordsweight = resultDic!["words weight"] as! [Any]
                
                var myArray = [String]()

                for i in 0..<wordsweight.count {

                    let wordArray = wordsweight[i] as! [String : Any]

                    let word = wordArray["word"] as! String

                    myArray.append(word)
                    print(#line,myArray)
                }
            })
        }

最终打印结果就是我们拿到的关键字