Ta的回复 ：let params: [String: AnyObject] = ["format": "wav", "rate": 8000, "channel": 1, "cuid": "ef0d06fef07e3c3f3c03853101133f79c3d6ae05", "token": token, "speech": speech, "len": len]         Alamofire.request(.POST, "http://vop.baidu.com/server_api", parameters: params, encoding: .JSON, headers: ["Content-Type": "application/json;charset=UTF-8"]).responseJSON { (response: Response<AnyObject, NSError>) in             print(">>>>>>>>>>response \(response)")         } 为什么返回3300,参数错误，并没有错呀