const cloud = require('wx-server-sdk') cloud.init() exports.main = async (event, context) => {   try {     const result = await cloud.openapi.wxacode.getUnlimited({       //scene: event.userInfo.openId,       path:'pages/act_bm_list/act_bm_list',       scene:"a=1"     })     console.log(result)     return await cloud.uploadFile({       cloudPath: 'qrcode/' + event.userInfo.openId +'.png',       fileContent: result.buffer, //二进制数据       success: res => {         // 返回文件 ID         console.log(res.fileID)       },       fail: console.error     })        } catch (err) {     console.log(err)     return err   } }

首先去activity集合查询sign_in_code为code的记录，返回该记录里的act_id里的值，=》再去activity_sign_up集合里找到act_id和_openid符合条件的记录，=》随后在该记录中插入act_sign_in为1 yzcode:function(e){     var code = this.data.yzmcode;     let nowDate= common.formatDate(new Date())     this.setData({       nowDate: common.formatDate(new Date())     })     //查询code相符的记录，并相符记录的act_id值返回     wx.cloud.database().collection('activity').where({       sign_in_code:"code"     }).get().then(ress => {       if(ress.data.length==0){         wx.showToast({           title: '亲，你输入的验证码错误或未到签到时间',           duration: 2000,           icon:'none'         })       }       else{         this.setData({           activity_id:ress.data[0].act_id         })       }     })     //在activity_sign_up中查找activity_id和openid均匹配的记录     db.collection("activity_sign_up").where({       activity_id:this.data.activity_id,       _openid:this.openid     }).get().then(resss => {       //在相符的记录中插入sign_in_state:"1",sign_in_time:nowDate,       db.collection("activity_sign_up").doc(resss.data[0]._id).update({         data: {           sign_in_state:"1",           sign_in_time:nowDate,         },         success: res => {           wx.showToast({             title: '签到成功！',           });           wx.navigateTo({             url: '/pages/act_sign_in_result/act_sign_in_result?activity_name='+ resss.data[0].activity_name +'&act_id='+ resss.data[0].activity_id+'&name='+ resss.data[0].name+'&bjclass='+ resss.data[0].bjclass+'&time='+nowDate,           })         },         fail: err => {           wx.showToast({             title: '签到失败，请刷新重试！',           })         }       })     })   },

const cloud = require('wx-server-sdk') cloud.init() exports.main = async (event, context) => {   try {     const result = await cloud.openapi.wxacode.getUnlimited({         scene: event.userInfo.openId,         path: 'pages/act_bm_list/act_bm_list'     })     console.log(result)

我在云数据库存储act-time，然后小程序页面显示NaN

https://developers.weixin.qq.com/s/tofiaGmW78mr

[图片] 请问我需要访问土木工程应该如何指向他？

https://developers.weixin.qq.com/s/vTgezFmD73mz [图片]

活动的开发时间字段：2020-xx-xx xx:xx:xx 集合中含有多个活动的参与，现在想要查询和查询日期近30天举办的活动，请问该怎么查询？

[图片] <view>{{item.title}}</view> 请问怎么引入wxs文件，去掉最后几个字[公交站]

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