public func fetchHttpProxy() -> Bool {
        guard let proxy = CFNetworkCopySystemProxySettings()?.takeUnretainedValue() else { return false }
        guard let dict = proxy as? [String: Any] else { return false }
        guard let HTTPProxy = dict["HTTPProxy"] as? String else { return false }
        if(HTTPProxy.count>0){
            return true;
        }
        return false;
    }

    func getSelectedFamilyDeviceSomeInfo(parameters : Any?, succeed : @escaping([String : Any]?) -> (), failure : @escaping(Error?) -> ()) {
        let requestUrl:String = SEVER_URL.appending("/developStage/devicegroup/v2/group/someInfo").addingPercentEncoding(withAllowedCharacters: .urlQueryAllowed)!
        print(parameters ?? "")
        NSLog("RequestUrl : "+requestUrl)
        
        if self.fetchHttpProxy() {
            print("++++++++++++设置了代理，不让请求=======")
            failure("设置了代理" as? Error)
            return
        }else{
            print("++++++++++++没设置代理，自由请求=======")
        }
        
        // 成功闭包
        let successBlock = { (task: URLSessionDataTask, responseObj: Any?) in
            succeed(responseObj as? [String : Any])
        }
        // 失败的闭包
        let failureBlock = { (task: URLSessionDataTask?, error: Error) in
            failure(error)
        }
        //accesstoken 加入请求头
        getAccessToken(success: {
            self.setHttpHeaderBasicProperty()
            self.post(requestUrl, parameters: parameters, progress: nil, success: successBlock, failure: failureBlock)
        }) {
            failure("Please sign in first" as? Error)
        }
    }