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去掉 [图片]

[图片]

2022-05-30

在高级操作里面报错吗

代码如下：想查询num大于1的数据 return db.collection('amount').aggregate() .group({ _id: '$openid', num: $.sum(1) }) .match({num:_.gt(1)}) .end() .then((result)=>{ console.log(result) }) 报错如下： {"errorCode":1,"errorMessage":"user code exception caught","stackTrace":"Error: collection.aggregate:fail -502001 database request fail. [FailedOperation] Failed operation. Please check your request, but if the problem persists, contact us.\n at Object.toSDKError (/var/user/node_modules/wx-server-sdk/index.js:8094:19)\n at Object.checkError (/var/user/node_modules/wx-server-sdk/index.js:1422:23)\n at Promise (/var/user/node_modules/wx-server-sdk/index.js:1161:33)\n at process._tickCallback (internal/process/next_tick.js:68:7)","statusCode":430}

2022-05-30

[图片]

自定义组件如何获取外部文件？

[图片]获取不到fileurl

2022-05-30

https://developers.weixin.qq.com/miniprogram/dev/api/file/FileSystemManager.writeFile.html

怎样把录制的frameBuffer转成mp3文件？

用 recorderManager.onFrameRecorded((res) => 录制音频文件获取的frameBuffer，用什么方法转成可以上传的文件？

2022-05-29

控制台高级操作里面执行一下

数据库查询，neq语法求解？谢谢！

.where({ ddzt: _.neq("待发货") //ddzt:"已下单" }) 帮我看看，用注释的能正常查询到数据。而用._neq语句排除条件来查询，无结果，也不报错，也不打印res,请给予指正，"已下单"，"待发货"数据确实都存在，谢谢！

2022-05-29

https://developers.weixin.qq.com/miniprogram/dev/api/base/wx.arrayBufferToBase64.html

请问websocket传输的图片怎么转换在小程序显示出来？

[图片]

2022-05-28

没打开本地调试，所以看不到

使用云开发基础模板，在云函数里，console.log不打印，怎么办？

使用【云开发基础模板】练习，在项目目录cloudfunctions/quickstartFunctions/createCollection/index.js中，添加了console.log('变量')方法，但是开发工具控制台，并没有任何输出。代码 const cloud = require('wx-server-sdk'); cloud.init({ env: cloud.DYNAMIC_CURRENT_ENV }); const db = cloud.database(); console.log(db);//在控制台中，看不到这段输出。

2022-05-27

调的哪个接口

调用微信接口出错，问服务器提供商说是IP被微信限制了，麻烦解答一下什么情况啊？

[图片] code: 404, msg: 资源获取不到, detail: {"header":{"Connection":"keep-alive","Server":"nginx","Date":"Fri, 27 May 2022 09:05:39 GMT","Content-Type":"text/html","Content-Length":"162"},"data":"<html>\r\n<head><title>404 Not Found</title></head>\r\n<body bgcolor=\"white\">\r\n<center><h1>404 Not Found</h1></center>\r\n<hr><center>nginx</center>\r\n</body>\r\n</html>\r\n","statusCode":404,"profile":{"responseStart":1653642339326,"redirectEnd":0,"rtt":108931,"throughputKbps":53197,"httpRttEstimate":300,"sendBytesCount":1731,"fetchStart":1653642230391,"estimate_nettype":4,"downstreamThroughputKbpsEstimate":87262,"SSLconnectionStart":1653642230392,"connectStart":1653642230392,"requestEnd":1653642339331,"requestStart":1653642230392,"redirectStart":0,"responseEnd":1653642339326,"protocol":"http/1.1","connectEnd":1653642230392,"transportRttEstimate":17,"port":443,"SSLconnectionEnd":1653642230392,"socketReused":true,"peerIP":"47.98.240.134","domainLookUpStart":1653642230392,"receivedBytedCount":310,"domainLookUpEnd":1653642230392},"cookies":[],"errMsg":"request:ok"}

2022-05-27

调错接口了公众号有两个token，用户信息也有两个

调用https://api.weixin.qq.com/cgi-bin/user/info报错？

https://developers.weixin.qq.com/doc/offiaccount/OA_Web_Apps/Wechat_webpage_authorization.html 根据文档编写获取微信公众号登录用户的信息获取报错{"errcode":40001,"errmsg":"invalid credential, access_token is invalid or not latest rid: 62908d6d-7f95ad02-76684956"} 无论是snsapi_userinfo还是snsapi_userbase都会报这个错误

2022-05-27

钱的单位用的不是分？为啥有小数

db.collection('xx').aggregate() 数据求和2位小数，变11位小数？

const db = wx.cloud.database() const $ = db.command.aggregate db.collection('tota').aggregate() .match({ //gscttime : datasymd, gscttime: db.RegExp({ //正则表达式 regexp: '.*' + datasym, options: 'i', }), gsdanweiname:app.globalData.danweiname, }) .group({ _id: '$gsdanweiname', rukousfzyue: $.sum('$rukou'), chukouhuonumsfzyue: $.sum('$chukouhuonum'), chukouhuomoneysfzyue: $.sum('$chukouhuomoney'), chukoukenumsfzyue: $.sum('$chukoukenum'), chukoukemoneysfzyue: $.sum('$chukoukemoney'), chukounumsfzyue: $.sum('$chukounum'), chukoumoneysfzyue: $.sum('$chukoumoney'), chenumsfzyue: $.sum('$chenum'), dznumsfzyue: $.sum('$dznum'), dzmoneysfzyue: $.sum('$dzmoney'), }) .limit(3000) .end() .then(res => { sfzyue = res; this.setData({ sfzyue : sfzyue }) console.log('返回值sfzyue', res) //that. addcaipurifenjun() }) 所有数字都是两位小数的，但是sum求和后得到11小位数返回值 chenumsfzyue: 32985 chukouhuomoneysfzyue: 205213.28 //像这个地方就是正常的。 chukouhuonumsfzyue: 1602 chukoukemoneysfzyue: 8892.39 chukoukenumsfzyue: 15521 chukoumoneysfzyue: 214105.66999999998 //这里为什么小数点后面会有那个位数，这个账务数据不能多1分，也不能少1分 chukounumsfzyue: 17123 dzmoneysfzyue: 184854.78 dznumsfzyue: 7028 rukousfzyue: 15862 数据库中每条记录chukoumoneysfzyue字段的也都是2位小数点的。

2022-05-27

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