现在获取0~x的audiobuffer，但如何拿到指定音频片段如：2~x ,我没有思路 [图片] [图片] 这是上图的代码 https://developers.weixin.qq.com/s/flK4H4mm71CA

// 怎么将下列数据根据status字段里元素的个数进行排序 list = [ { "_id": { "user":"A" }, "status": [ "success", "checking", "success", "checking", "success", "checking", "checking", "checking", "checking", "checking" ] }, { "_id": { "user": "B" }, "status": [ "success", "success", "success", "success", "fail", "success", "fail", "fail", "fail", "fail", "checking", "checking", "checking", "checking", "checking", "checking", "checking", "checking" ] }, { "_id": { "user": "C" }, "status": [ "fail" ] }, { "_id": { "user": "D" }, "status": [ "fail", "fail" ] } ] // 处理后的数据 list = [ { "_id": { "user": "B" }, "status": [ "success", "success", "success", "success", "fail", "success", "fail", "fail", "fail", "fail", "checking", "checking", "checking", "checking", "checking", "checking", "checking", "checking" ] }, { "_id": { "user":"A" }, "status": [ "success", "checking", "success", "checking", "success", "checking", "checking", "checking", "checking", "checking" ] }, { "_id": { "user": "D" }, "status": [ "fail", "fail" ] }, { "_id": { "user": "C" }, "status": [ "fail" ] } ] // list是聚合函数获取的数据 db.collection('userUpfile') .aggregate() .group({ _id: { user: '$user' }, status: $.push( "$status" ) }) .sort() .limit(1000) .end()

打印的据和电脑端一样，想请教一下大家有没有遇到这种情况（代码量太大不方便放）

https://developers.weixin.qq.com/s/ptKQG5me7sB3 [图片]

[图片] [图片] 这是代码片段 https://developers.weixin.qq.com/s/nDcmeHmg7xAb

a页面如何使用b页面的bindShop函数？ [图片]这是b页面 [图片]这是a页面 这是代码片段 https://developers.weixin.qq.com/s/879syHmh7wAQ

我从A页面通过navigateTo跳转到B界面，怎么从B页面的返回跳转到主页，而不是返回到A界面 [图片]

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[图片] 云函数调用失败 [图片] 云开发控制台调用成功 [图片] 传的参数打印出来也是正常的 这是调试代码 const db = cloud.database() const cmd = db.command if(event.type == 'rvmnote'){ // 通过event.id删除指定数据         console.log(event.type,event.id,event.openid)         await db.collection("userData")         .where({             _openid: "as13df23ads2f12123",         })         .update({             data:{                 noteBook:cmd.pull({                     _id:event.id                 })             }         })     } 数据库测试数据： noteBook:[ {_id:"weq1q3wer21q3we2123",content:'abc'}, {_id:"qer1q3wer21q3we2rrr",content:'bcx'}, // 要删除的数据 {_id:"dfj25f6sd5fsd5dsf65",content:'hjh'} ]

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