如何在A页面调用wx.scanCode拿到参数发起异步请求后直接跳转至B页面而不返回A再跳转至B？

API：scanCode

基础库：2.4.4

微信版本号：7.0.4

问题：在A页面呼起扫一扫，在扫一扫的成功回调里发起异步请求，请求的成功回调里navigateTo B页面。总是在调起扫一扫后重回A页面而后才跳转B页面，如何直接跳至B页面？

代码：

jumpPay: function(e) {         wx.scanCode({             success(res) {                 let str = res.result                 let q={}                 str.replace(/([^?&=]+)=([^&]+)/g,(_,k,v)=>q[k]=v);                 // q;                 // str = str.match(/qrcode=(\S*)/)[1];                 console.log('扫一扫获得的res',q)                 if(q.qrcode){                     const getScanQuery = {qr_code:q.qrcode}                     PayStore.getQueryScanInfo(getScanQuery).then(function(res) { // 发起异步请求                         if(0==res.data.retcode){                             let query = {...res.data,...getScanQuery}                             query = JSON.stringify(query)                             wx.navigateTo({                                 url: '/pages/pay/payInput?query='+query                             });                         }else{                             console.log('接口回参错误')                         }                     }).catch( (error) => {                         console.log(error)                     })                                      }else{                    console.log('未获取到qrcode')                 }             },             fail(){                 console.log('扫一扫调用失败')             }         })           },