https://developers.weixin.qq.com/miniprogram/dev/framework/plugin/functional-pages/request-payment.html
用这种方式进行打开收银页返回后怎么获取取消支付回调？
wx.requestPluginPayment({
            fee,
            paymentArgs,
            currencyType,
            version,
            success(r) {
                console.log(r)
            },
            fail(e) {
                console.error(e)
            }
        })