勾选文件变更时自动重新加载，此bug在编辑数据库相关代码时出现，具体表现为输入一些字符如空格和删掉后，保存，就会出现以下信息。如果保存后报错，把代码改为创建新函数生成的模板代码仍会报错，另外，不只是修改数据库操作语句会产生此bug，反复按ctrl+s也有几率产生bug 安装依赖使用的命令是npm install --save wx-server-sdk@latest 代码： const cloud = require('wx-server-sdk') cloud.init() // 云函数入口函数 exports.main = async (e, context) => {   const wxContext = cloud.getWXContext()   var time=new Date()   var type=e.type   var deviceid=e.deviceid   a={     time:time,     type:type,     deviceid:deviceid,     read:false   }   const db = cloud.database()   db.collection('announces').add({     data:a   })   db.collection('userdevice').where({     deviceid:deviceid   }).get().then(     res=>{       console.log(res.data)      }   )    /*return {     e,     openid: wxContext.OPENID,     appid: wxContext.APPID,     unionid: wxContext.UNIONID,     aa:a   }*/ } 报错信息： node.js:1 [error] Uncaught Exception:  Error: 函数必须导出名为 'main' 的方法     at u.load (C:\Users\duchu\AppData\Roaming\Tencent\微信开发者工具\package.nw\js\common\cloud-functions-debugger-server\worker\node.js:1:22007)     at u.reload (C:\Users\duchu\AppData\Roaming\Tencent\微信开发者工具\package.nw\js\common\cloud-functions-debugger-server\worker\node.js:1:26848)     at C:\Users\duchu\AppData\Roaming\Tencent\微信开发者工具\package.nw\js\common\cloud-functions-debugger-server\worker\node.js:1:28280     at process. (C:\Users\duchu\AppData\Roaming\Tencent\微信开发者工具\package.nw\js\common\cloud-functions-debugger-server\worker\node.js:1:28356)     at process.emit (events.js:203:13)     at emit (internal/child_process.js:876:12)     at processTicksAndRejections (internal/process/task_queues.js:77:11) m @ node.js:1 (anonymous) @ node.js:1 emit @ events.js:203 (anonymous) @ internal/process/execution.js:150 TickObject (async) init @ internal/inspector_async_hook.js:21 emitInitNative @ internal/async_hooks.js:134 emitInitScript @ internal/async_hooks.js:341 TickObject @ internal/process/task_queues.js:102 nextTick @ internal/process/task_queues.js:130 handleMessage @ internal/child_process.js:885 channel.onread @ internal/child_process.js:574