await db.collection('user_group') .aggregate() .match({ position: $.or(1, 2), }).project({ _id: 0, group_id: 1, }) .end().then(res => { manager_groups = res.list }) 昨天还运行好好的，今天中午就提示“$or”出错，什么原因？？？ {"errCode":-404011,"errMsg":"cloud.callFunction:fail requestID 8eb995da-c4a1-11e9-a538-525400dee61a, cloud function service error code -504002, error message errCode: -502001 database request fail | errMsg: [FailedOperation] (BadValue) unknown operator: $or; ; at cloud.callFunction api; ","requestID":"8eb995da-c4a1-11e9-a538-525400dee61a"}

点击跳转没反应，为什么呢？ 新建一个小程序把代码和相关文件复制进去却可以跳转。 app.json: { "pages": [ "pages/welcome/welcome", "pages/post/post", "pages/movie/movie", "pages/post/post-comment/post-comment", "pages/post/post-detail/post-detail" ], "window": { "navigationBarBackgroundColor": "#4A6141" }, "tarBar":{ "borderStyle":"white", "selectedColor":"#4A6141", "color":"#333", "backgroundColor":"#fff", "position":"bottom", "list":[ { "pagePath":"pages/post/post", "text":"文字", "iconPath":"images/icon/wx_app_news.png", "selectedIconPath":"images/icon/wx_app_news@HL.png" }, { "pagePath":"pages/movie/movie", "text":"光影", "iconPath":"images/icon/wx_app_movie.png", "selectedIconPath":"images/icon/wx_app_movie@HL.png" } ] } } pages/welcome/welcome.js: onTapJump: function (event) { wx.switchTab({ url: '../post/post' }) }, <!--pages/welcome/welcome.wxml--> <view class="container"> <image class="avatar" src="../../images/avatar/avatar1.jpg"> </image> <text class="motto">Hello</text> <view catchtap='onTapJump' class="journey-container"> <text class="journey">开启小程序之旅</text> </view> </view>