function goPay(param, success) {
    var url = "/dealer/pay/gateway";

    var sendOpt = {
        url: url,
        type: "GET",
        // 非常特殊的处理，GET带JSON参数 todo
        data: {param: JSON.stringify(param)},
        mask: "正在获取支付参数...",
        success: function (res) {
            let payload = res.payload
            if (res.result == 1) {
                if (res.payload.payUrl) {
                    location.href = res.payload.payUrl;
                } else {
                    function onBridgeReady() {
                        // 由于微信window.WeixinJSBridge经常报错，再判断一次
                        if (!window.WeixinJSBridge) {
                            mui.toast("微信支付初始化失败，请重试");
                            return;
                        }

                        window.WeixinJSBridge.invoke("getBrandWCPayRequest", {
                            appId: res.para.appId,
                            timeStamp: res.para.timeStamp,
                            nonceStr: res.para.nonceStr,
                            "package": res.para.package,
                            signType: res.para.signType,
                            paySign: res.para.paySign
                        }, function (e) {
                            if ("get_brand_wcpay_request:ok" == e.err_msg) {
                                if (payload.golden) {
                                    console.log('wechat golden plan has ad.')
                                    return;
                                }

                                location.href = '/public/thirdReceipt.html?orderType=recharge&outTradeNo=' + payload.outTradeNo;
                            } else if ("get_brand_wcpay_request:fail" == e.err_msg) {
                                mui.toast("付款失败");
                            }
                        });
                    }

                    if (typeof window.WeixinJSBridge == "undefined") {
                        if (document.addEventListener) {
                            document.addEventListener('WeixinJSBridgeReady', onBridgeReady, false);
                        } else if (document.attachEvent) {
                            document.attachEvent('WeixinJSBridgeReady', onBridgeReady);
                            document.attachEvent('onWeixinJSBridgeReady', onBridgeReady);
                        }
                    } else {
                        onBridgeReady();
                    }
                }

            } else {
                mui.toast(res.description);
            }

        }
    }

    sendRequest(sendOpt);
}