刚刚好了没几天，又出现了这样的问题了，还是云开发数据库watch监听的bug，请官方管理员来看一下。 下面是6月12日发的求助内容： 昨天上午还好好的，晚上就报错了。调试了整晚，手机端还是这个错误。偏偏在微信开发者工具上是正常的。 这是由手机端监听云开发数据库引发的错误，我把监听函数注释掉，就不报这个错误信息了。 Uncaught (in promise) FrameworkError <TypeError: Cannot add property Map, object is not extensible> &lt;TypeError: Cannot add property Map, object is not extensible&gt;<div class="eruda-json eruda-hidden"></div> at e.value (wagame://servicewechat.com/WAGameVConsole.html:27576:37895) at new e (wagame://servicewechat.com/WAGameVConsole.html:27576:36659) at t.value (wagame://servicewechat.com/WAGameVConsole.html:27576:32217) at t.value (wagame://servicewechat.com/WAGameVConsole.html:27576:31461) at f.e.<computed> [as error] (wagame://servicewechat.com/WAGameVConsole.html:27576:16382) at wagame://servicewechat.com/WAGameVConsole.html:27576:19192 at Array.forEach (<anonymous>) at console._log (wagame://servicewechat.com/WAGameVConsole.html:27576:19080) at <anonymous>:1:9 代码片段： var db = wx.cloud.database(); var watcher1 = db.collection('game_rooms'); //监听游戏房间玩家信息更新情况：       if (nowRoom.roomID != "" && G.inRoom == 1) {         console.log("nowRoom.roomID",nowRoom.roomID);         watcher1.where({           _id: nowRoom.roomID         }).watch({           onChange: function(snapshot) {            console.log('query result snapshot after the event', snapshot.docs);           // 监听游戏房间数据：玩家1，玩家2，的信息，在此房间的游戏得分，剩余时间   },           onError: function (err) {             console.error('the gameRoom watch1 closed because of error', err)           }                   });       } 报错信息： the gameRoom watch1 closed because of error <Error: errCode: -402012 realtime listener init ws fail | errMsg: errors of each retry (latest to oldest): ["[object Object]","TypeError: Cannot add property Map, object is not extensible","TypeError: Cannot add property Map, object is not extensible","TypeError: Cannot add property Map, object is not extensible","TypeError: Cannot add property Map, object is not extensible","TypeError: Cannot add property Map, object is not extensible"] history states: UNINIT-(close)->CLOSED>

该云函数在本地测试时可以顺利实现数据库的操作，但在云端测试时却失效，数据库没有顺利更新 将云端调用的日志及相关信息粘贴如下： 内存使用 32.74 MB Request ID f90f941b-6ff3-11ea-a61f-525400697544 调用状态 成功 返回结果 {"event":{"gs":1,"pos":0,"rn":1}} 调用日志 START RequestId: f90f941b-6ff3-11ea-a61f-525400697544 Event RequestId: f90f941b-6ff3-11ea-a61f-525400697544 END RequestId: f90f941b-6ff3-11ea-a61f-525400697544 Report RequestId: f90f941b-6ff3-11ea-a61f-525400697544 Duration:9ms Memory:256MB MaxMemoryUsed:32.742188MB

{"errCode":-501001,"errMsg":"openapi.subscribeMessage.send:fail ETIMEDOUT; at openapi.subscribeMessage.send api; "} Error: errCode: -501001 resource system error | errMsg: collection.get:fail ETIMEDOUT; at collection.get api;

各位高手，我是菜鸟，请多包涵 我开发的小游戏在预览时发现字体太大了，想调节字体大小，于是写入以下代码： ctx.FontSize='10' 结果发现在模拟器上，无论FontSize填写什么值，都对ctx.fillText无效。 问题：我该如何调节字体的大小呢？