swift - 使用未解析的标识符 'response'(在 ""“dataTask.resume()""”之后)

Question

我想我需要在其他地方编写我的类(class)，但我不知道在哪里。该错误显示在最后 dataTask.resume() 后面的行上。

let postData = NSMutableData(data: "email=hello@test.com".data(using: String.Encoding.utf8)!)
postData.append("&password=12345".data(using: String.Encoding.utf8)!)
postData.append("&loginbutton=Connecter".data(using: String.Encoding.utf8)!)

let request = NSMutableURLRequest(url: NSURL(string: "https://zzzway.com/appMango/login.php")! as URL,
                                        cachePolicy: .useProtocolCachePolicy,
                                    timeoutInterval: 10.0)
request.httpMethod = "POST"
request.allHTTPHeaderFields = headers
request.httpBody = postData as Data

let session = URLSession.shared
let dataTask = session.dataTask(with: request as URLRequest, completionHandler: { (data, response, error) -> Void in
  if (error != nil) {
    print(error)
  } else {
    let httpResponse = response as? HTTPURLResponse
    print(httpResponse)
  }
})
 dataTask.resume()

    let httpResponse = response as? HTTPURLResponse
    if httpResponse.contains("chute")
    {
    print("exists")
    }

Answer 1

这个

let httpResponse = response as? HTTPURLResponse
if httpResponse.contains("chute") {
     print("exists")
}

应该在completionHandler内

<小时/>

完成你需要做的事情

if let str = response?.url?.absoluteString , str.contains("chute") {

}