Swift +AFNetworking3.0 Get

  let manager = AFHTTPSessionManager()
             let url = "http://v.juhe.cn/weather/index"
             let params = ["format":,"cityname":city,"key":"ead46e88f98d0cd48730bdcde2"]

             //progress做任务进度获取
             manager.GET(url, parameters: params, progress: nil, success: { (_, JSON) in
                 print(JSON)
                 var temperature: String
                 var weatherIcon: String
                 var weatherText: String

                 let dis = JSON as! NSDictionary

                 temperature = (dis["result"]?["today"]?!["temperature"]?! as? String)!
                 weatherText = (dis["result"]?["today"]?!["weather"]?! as? String)!
                 weatherIcon = (dis["result"]?["today"]?!["weather_id"]?!["fa"]?! as? String)!

                 self.temperature.text = temperature
                 self.Weather.text = weatherText
                 self.location.text = city

                 default:
                     print("Error==")
                 }

                 }, failure: { (_, error) in
                     print(error)

             })