ready() { this.ctx = createRecycleContext({ id: 'recycleId', dataKey: 'recycleList', page: this, itemSize: { // 这个参数也可以直接传下面定义的this.itemSizeFunc函数 width: 162, height: 182 } }) ctx.append(newList) }, 因为要维护一维数组，其实表现是一个二维数组，如果使用插入和增加这些方法要很麻烦计算，请问如果我拉到数据直接用update的方法从0～length去更新全部列表对性能影响大不大，怎么去评估这一性能

云函数调用的时候报错，只有一个函数出了问题，其他没有，好像是数据库授权问题，求解 [图片] [云函数] [getRecord] :  Error: errCode: -404011 cloud function execution error | errMsg: cloud.callFunction:fail requestID 2cb63002-90d3-11ea-bbe2-52540042b19b, cloud function service error code -504002, error message errCode: -502001 database request fail | errMsg: [FailedOperation.ListTable] auth error: sasl conversation error: unable to authenticate using mechanism "SCRAM-SHA-1": (AuthenticationFailed) Authentication failed.;  Error: errCode: -502001 database request fail | errMsg: [FailedOperation.ListTable] auth error: sasl conversation error: unable to authenticate using mechanism "SCRAM-SHA-1": (AuthenticationFailed) Authentication failed.;      at Object.returnAsCloudSDKError (:41176/var/user/node_modules/wx-server-sdk/index.js:6121)     at Object.checkError (:41176/var/user/node_modules/wx-server-sdk/index.js:1418)     at Promise (:41176/var/user/node_modules/wx-server-sdk/index.js:1486)     at <anonymous>     at process._tickCallback (:41176/appservice/internal/process/next_tick.js:188); at cloud.callFunction api;      at new u (VM226 WAService.js:2)     at d (VM226 WAService.js:2)     at f (VM226 WAService.js:2)     at Function.success (VM226 WAService.js:2)     at VM226 WAService.js:2     at E (VM226 WAService.js:2)     at i.<anonymous> (VM226 WAService.js:2)     at i.emit (VM226 WAService.js:2)     at Ii (VM226 WAService.js:2)     at VM226 WAService.js:2