Unity--get请求与解析

    private static string _Url = "https://xxxx.cn-beijing.fc.aliyuncs.com/proxy/zjds/api";
    private static string _BuDan = "/order/surplus";

public IEnumerator BuDan()
    {
        //Debug.LogError("补单检测");
        UnityWebRequest request = UnityWebRequest.Get(_Url + _BuDan +"?g="+_gid + "&u=" + _uid); 
        request.timeout = 5;
        yield return request.SendWebRequest();

        if (request.responseCode == 200)
        {
            string text = request.downloadHandler.text;
            //Debug.LogError("服务器返回:" + text);
            JsonData jData = JsonMapper.ToObject(text);
            int code = int.Parse(jData["s"].ToString());
            if (code == 0)
            {
                int num = jData