下拉刷新如图，模拟器正常，真机上不回弹。上拉加载，切换到其他页面时，如果没有数据或者上拉的动作，就一直显示加载中，这问题怎么解决，求助大佬 [图片][图片] wxml代码 <view class="carpool-title">   <text class="title-text">百姓同城拼车网-同城拼车</text> </view> <view class="ad-group">   <image class="ad-image" src="../../images/专注.jpg" mode="" /> </view> <view class="search-input-group">   <view class="input-group">     <input class="search-input" placeholder="出发地" />     <image class="thumbnail" src="../../images/return.png" mode="" />     <input class="search-input" placeholder="终点" />   </view>   <button class="search-button" size="mini">查询</button> </view> <segment-carpool items="{{items}}" wehicle="{{wehicle}}" binditemchengde="onItemChengdeEvent" defaultIndex="0">   <view slot="0" class="segment-page wehicle-page">     <wehicle wx:for="{{wehicles}}" wx:key="wehicle" wx:for-item="wehicle" wehicle="{{wehicle}}"></wehicle>   </view>   <view slot="1" class="segment-page people-page">     <wehicle wx:if="{{wehicle.carpool == '我要找车'}}" wx:for="{{wehicles}}" wx:key="wehicle" wx:for-item="wehicle" wehicle="{{wehicle}}"></wehicle>   </view>   <view slot="2" class="segment-page train-page">     <wehicle wx:if="{{wehicle.carpool == '我要找人'}}" wx:for="{{wehicles}}" wx:key="wehicle" wx:for-item="wehicle" wehicle="{{wehicle}}"></wehicle>   </view>   <view slot="3" class="segment-page money-page">     <wehicle wx:if="{{wehicle.carpool == '我找货车'}}" wx:for="{{wehicles}}" wx:key="wehicle" wx:for-item="wehicle" wehicle="{{wehicle}}"></wehicle>   </view>   <view slot="4" class="segment-page money-page">     <wehicle wx:if="{{wehicle.carpool == '我要找货'}}" wx:for="{{wehicles}}" wx:key="wehicle" wx:for-item="wehicle" wehicle="{{wehicle}}"></wehicle>   </view> </segment-carpool> <loadingmore hasmore="{{hasmore}}"></loadingmore> JS代码 const db = wx.cloud.database(); Page({   data: {      items:["全部","我要找车","我要找人","我找货车","我要找货"],      hasmore:true,      wehicles:[],   },   onLoad(options) {        },   onItemChengdeEvent(event){        },   lowdrelease(start=0){     const that = this;     let promise = db.collection("wehicle");     if(start>0){       promise = promise.skip(start);     }     promise.limit(10).orderBy("create_time", "desc").get().then(res => {       const wehicles = res.data;       let hasmore = true;       if(wehicles.length == 0){         hasmore = false       }       let newWehicles = [];       if(start > 0){         newWehicles = that.data.wehicles.concat(wehicles);       }else{         newWehicles = wehicles;       }       that.setData({         wehicles:newWehicles,         hasmore:hasmore       })     })   },   /**    * 生命周期函数--监听页面显示    */   onShow() {     this.lowdrelease();     wx.stopPullDownRefresh();   },   /**    * 页面相关事件处理函数--监听用户下拉动作    */   onPullDownRefresh() {     this.lowdrelease(0);   },   /**    * 页面上拉触底事件的处理函数    */   onReachBottom() {     this.lowdrelease(this.data.wehicles.length);   }, })

如第一张图，换行后就另起一行了，希望效果能够像第二张图一样，依次排列后换行，求指教 [图片][图片]  <view class="wehicle-top">    <text class="top">顶</text>    <text class="start">{{wehicle.startPoint}}</text>    <text class="arrow">→</text>    <text class="end">{{wehicle.goal}}</text>    <text wx:if="{{wehicle.carpool == '我要找人'}}" class="pass">（{{wehicle.pass}}但是沃尔沃温热热私人而色色是二色）</text> <!--途径--> </view> WXSS代码： .wehicle-top{     display:flex;     justify-content:flex-start;     flex-flow:wrap; } .wehicle-top .top{     margin-right:10rpx;     background-color:red;     padding:0 10rpx;     border-radius:10rpx;     font-size:28rpx;     color:#fff; } .wehicle-top .start{     font-size:32rpx;    font-weight:700;    margin-right:10rpx; } .wehicle-top .arrow{     font-size:32rpx;     font-weight:700;     margin-right:10rpx;  } .wehicle-top .end{     font-size:32rpx;     font-weight:700;     margin-right:10rpx;  } .wehicle-top .pass{     font-size:28rpx;     font-weight:700; }

在components组件中定义了picker，在pages页面中，如何把picker中的值保存到数据库中？ 图片 [图片][图片] 代码： components中： selector代码： <view class="section">   <picker bindchange="bindPickerChange" value="{{index}}" range="{{array}}">     <view class="section-picker">       <view class="picker">         {{arrays}}       </view>       <icon class="icon"></icon>     </view>   </picker> </view> js代码： Component({    /**     * 组件的属性列表     */    properties: {     array:{       type:Array,       value:[]     },     arrays:{       type:String,       value:''     }    },    /**     * 组件的初始数据     */    data: {      index:0    },    /**     * 组件的方法列表     */    methods: {     bindPickerChange(event){       console.log('picker发送选择改变，携带值为', event.detail.value)       var that = this;       var index = event.detail.value;       var array = that.properties.array;       that.setData({         arrays:array[index],         // index: index       })       var detail = {'index':index};       var options = {};       that.triggerEvent('carporate',detail,options)     }    } }) pickerday代码： <picker mode="date" fields="day" value="{{date}}" start="{{start}}" end="{{end}}" bindchange="onbindDataChange">   <view class="section-picker">     <view class="picker">       {{date}}     </view>     <icon class="icon"></icon>   </view> </picker> js代码： var util = require('../../utils/util.js');   var minday = util.formatTime(new Date()).split(' ')[0]; var maxday =  util.formatTime(new Date((new Date()).getTime()+(1000*60*60*24*62))).split(' ')[0]; Component({    /**     * 组件的属性列表     */    properties: {     date:{       type:String,       value:''     }    },    /**     * 组件的初始数据     */    data: {     // date:today,     start: minday,     end:maxday,    },    /**     * 组件的方法列表     */    methods: {     onbindDataChange(event){       console.log(event);       var value = event.detail.value;       this.setData({         date:value       })     },    } }) pages页面代码： <form bindsubmit="onReleaseEvent">   <view class="carpool-group">     <view class="carpool-title">拼车类型</view>     <selector name="carpool" array="{{carpool}}" arrays="{{carpools}}" bindcarporate="onCarporateEvent"></selector>   </view>   <view class="carpool-group">     <view class="carpool-title">出发日期</view>     <pickerday name="day" date="{{day}}"></pickerday>   </view>   <view class="carpool-group">     <view class="carpool-title">出发时间</view>     <pickertime name="times" time="{{times}}"></pickertime>   </view>   <button class="btn" formType="submit">提交</button> </form> js代码： const db = wx.cloud.database() const app = getApp(); Page({   /**    * 页面的初始数据    */   data: {     carpool:['我要找车','我要找人','我找货车','我要找货'],     carpools:'请选择拼车类型',     day:'请选择出发日期',     times:'请选择出发时间'   },   /**    * 生命周期函数--监听页面加载    */   onLoad(options) {   },   onCarporateEvent(event){     console.log(event);     var that = this;     var index = event.detail.index;     that.setData({      index:index     })   },      /**    * 发布信息    */   onReleaseEvent(event){     console.log(event);     const that = this;     const carpool = that.data.carpool[0]; // 如何获取拼车类型     const day = that.data.day; // 如何获取出发日期     const times = that.data.times; // 然后获取出发时间     const start = event.detail.value.start;     const goal = event.detail.value.goal;     const car = event.detail.value.car;     const peopleNumber = event.detail.value.peopleNumber;     const phone = event.detail.value.phone;     const content = event.detail.value.content;     const author = app.globalData.userInfo;     db.collection("wehicle").add({       data:{         carpool:carpool,         day:day,         times:times,         start:start,         goal:goal,         car:car,         peopleNumber:peopleNumber,         phone:phone,         content:content,         author:author       }     })   }, }）

查了很多资料说是异步问题，也做了修改，但还是为undefined。要怎么修改？求帮助、 app.js打印的图片 [图片] login.js打印的图片 [图片] // app.js App({   onLaunch:async function () {     if (!wx.cloud) {       console.error('请使用 2.2.3 或以上的基础库以使用云能力');     } else {       wx.cloud.init({         env: '1g4z5k3lc74cf9e2',         traceUser: true,       });     }     this.globalData = {};     await this.loadUserInfo();     console.log('loadUserInfo有没有执行',this.loadUserInfo);     console.log('有没有获取到userInfo',this.globalData.userInfo);   },   async loadUserInfo() {     var that = this;     let loginOpenid = await wx.cloud.callFunction({       name:'logins',     })     console.log('获取用户openid',loginOpenid);     that.globalData.openid = loginOpenid.result.openid;     console.log('保存openid',that.globalData.openid);          const loginRes = await wx.cloud.database().collection('login')       .where({         _openid:'loginOpenid'       }).get()     console.log('查询是否有用户信息',loginRes);     that.globalData.userInfo = loginRes.data[0];     console.log('保存用户信息到globalData',that.globalData.userInfo);   },   is_login() {     console.log('is_logn获取',this.globalData.userInfo);     if (this.globalData.userInfo) {       return true     } else {       return false     }        }, }) login.js代码 // pages/login/login.js const app = getApp(); const db = wx.cloud.database(); Page({   data: {      },   onLoad(options) {   },   // 获取头像   getAvatar(event) {     console.log('临时头像路劲地址',event.detail.avatarUrl); //临时头像路劲地址     let avatarUrl = event.detail.avatarUrl; //临时地址     let suffix = /\.[^\.]+$/.exec(avatarUrl)[0];     wx.cloud.uploadFile({       cloudPath: 'loginImages/' + new Date().getTime() + suffix,       filePath: avatarUrl //上传到云端的路劲，     }).then(res => {       console.log('头像路劲地址',res.fileID);       this.setData({         avatarUrl: res.fileID       })     })   },   async login(event) {     console.log(event);     let nickName = await event.detail.value.nickName;     console.log('用户名', nickName);     if(!nickName){       wx.showToast({         title:'请填写昵称',         icon:'error'       })       return     }     if(!this.data.avatarUrl){       wx.showToast({         title:'请上传头像',         icon:'error'       })       return     }     let openid =await app.globalData.openid;     console.log("获取app.globalData.openid",openid);     try{       let existingUserQuery = await db.collection('login').where({         _openid:openid       }).get();       console.log('获取用户信息',existingUserQuery)       if(existingUserQuery.data.length > 0){         this.setData({           userInfo:existiongUserQuery.data[0],         });       }else{         let newUser = {           num:Date.now(),           avatarUrl:this.data.avatarUrl,           nickName:nickName,         };         await db.collection('login').add({           data:newUser         });       }           }catch(err){       console.log('Error',err);     }     wx.showToast({       title:'登陆成功'     });     setTimeout(()=>{       wx.navigateBack({});     },1500)   }, }) user-center.js代码 const app = getApp(); console.log('是否有app信息',app) const db = wx.cloud.database(); Page({     data: {     },     onLoad:async function(options) {         console.log('是否有传递数据',app.is_login());        if(app.is_login()){         this.setData({                userInfo: app.globalData.userInfo,                avatarUrl: app.globalData.userInfo.avatarUrl,                nickName: app.globalData.userInfo.nickName            })        }     onuserInfo(e){          wx.navigateTo({             url:'/pages/login/login'         })            },     

写了段授权代码，设置全局配置时，is_login()中this.globalData.userInfo为undefined，在页面pages.user-center打印app.globalData.userInfo就是undefined，打印app.is_login()就是false，在pages.login页面中打印app.is_login()时为true,也就能够正常，打印app.globalData.userInfo又能够正常打印出来，请问这个问题怎么解决？ 如图： [图片] app.js代码 App({   onLaunch: function () {     if (!wx.cloud) {       console.error('请使用 2.2.3 或以上的基础库以使用云能力');     } else {       wx.cloud.init({         env: '',         traceUser: true,       });     }     this.globalData = {};     this.loadUserInfo();   },   loadUserInfo() {     //获取用户的openid     var that = this;     wx.cloud.callFunction({       name: 'login',       success(res) {         // console.log(res);         that.globalData.openid = res.result.openid         //查找数据库用户表里面是否有这个用户记录         wx.cloud.database().collection('login').where({           _openid: res.result.openid         }).get({           success(result) {             console.log(result)             // that.globalData.userInfo = result.data[0]              if(result.data[0]){               wx.setStorageSync('login',result.data[0])               // that.globalData.userInfo = wx.getStorageSync('userInfo')               that.globalData.userInfo = result.data[0]                  console.log(that.globalData.userInfo); // 这里能够正常打印出来数据             }           }         })        }     })   },   is_login() {     console.log(this.globalData.userInfo); // 这里打印为undefined     if (this.globalData.userInfo) {       return true     } else {       return false     }    }, 云函数代码： const cloud = require('wx-server-sdk') cloud.init() const db = cloud.database(); // 云函数入口函数 exports.main = async (event, context) => {   const wxContext = cloud.getWXContext()   return {     event,     openid: wxContext.OPENID,     appid: wxContext.APPID,     unionid: wxContext.UNIONID,   } } pages.login页面代码： const app =getApp(); const db = wx.cloud.database(); Page({     data: {     },     onLoad(options) {     },     // 获取头像     getAvatar(event){         console.log(event.detail.avatarUrl);//临时头像路劲地址         let avatarUrl = event.detail.avatarUrl;//临时地址         let suffix = /\.[^\.]+$/.exec(avatarUrl)[0];         wx.cloud.uploadFile({             cloudPath: 'loginImages/' + new Date().getTime() + suffix,             filePath:avatarUrl  //上传到云端的路劲，         }).then(res => {             console.log(res.fileID);             this.setData({                 avatarUrl:res.fileID             })         })     },     login(event){         console.log(event.detail.value.nickName);         let nickName = event.detail.value.nickName;                  if(!nickName){             wx.showToast({                 title:'请填写昵称',                 icon:'error'             })             return         }         if(!this.data.avatarUrl){             wx.showToast({                 title:'请上传头像',                 icon:'error'             })             return         }         var that = this;         console.log(app.is_login()); // 在这里又能够正常打印出来         db.collection('login').where({             _openid:app.globalData.openid         }).get({             success(res){                 console.log(res)                if(res.data.length == 0){                     //添加记录到数据库                     // var avatarUrl = that.data.avatarUrl;                     db.collection('login').add({                         data:{                             num:Date.now(),//！QQ号                             avatarUrl:that.data.avatarUrl,                             nickName:nickName                         },                         success(res){                             console.log(res)                             wx.showToast({                                 title:'登陆成功',                             })                             setTimeout(function(){                               wx.navigateBack({})                            },1500)                         }                     })                 }else{                     that.setData({                         userInfo:res.data[0]                     })                 }             }                      })     },

在模拟器中，如果把我的页面放在前面展示，登陆成功后返回，页面没有获取到，如图一，如果首页放在前面展示，再打开我的页面就能够正常获取到，网上查了些资料，说是异步问题，没有处理过这种问题，代码改怎么写? [图片][图片] APP代码： App({   onLaunch: function () {     if (!wx.cloud) {       console.error('请使用 2.2.3 或以上的基础库以使用云能力');     } else {       wx.cloud.init({         env:'',         traceUser: true,       });     }     this.globalData = {};     this.loadUserInfo();    },   loadUserInfo(){     //获取用户的openid     var that = this;     wx.cloud.callFunction({       name:'login',       success(res){         // console.log(res);         that.globalData.openid = res.result.openid         //查找数据库用户表里面是否有这个用户记录         wx.cloud.database().collection('login').where({           _openid:res.result.openid         }).get({           success:result => {             // console.log(result)             that.globalData.userInfo = result.data[0]           }         })       }     })   }, is_login(){   if(this.globalData.userInfo){     return true   }else{     return false   }   }, }); wxml代码： <view class="userinfo-group">     <!-- 已登陆 -->     <view class="user-group" wx:if="{{userInfo != null}}">         <image class="avatra" src="{{avatarUrl?avatarUrl:'../../images/avatar.png'}}"></image>         <view class="right-group">             <view class="nickname">用户名：{{nickName}}</view>             <view class="ID">用户ID：dfd9765490</view>         </view>     </view>     <!-- 未登陆 -->     <block wx:if="{{userInfo == null}}">         <view class="user-group" bind:tap="onuserInfo">             <image class="avatra" src="../../images/avatar.png"></image>             <view class="right-group">                 <view class="nickname">点击登录</view>                 <view class="ID">登录获取更多权限</view>             </view>         </view>     </block> </view> JS代码： Page({     data: {     },     onLoad(options) {         console.log(app.is_login());        if(app.is_login()){         this.setData({             userInfo:app.globalData.userInfo,             avatarUrl:app.globalData.userInfo.avatarUrl,             nickName:app.globalData.userInfo.nickName         })        }     },          onuserInfo(){         wx.navigateTo({            url:'/pages/login/login'        })     }, 代码片段 https://developers.weixin.qq.com/s/A59C3ym57VRA

数据库中的时间用db.serverdate()获取的时间，当wxml中使用{{util.timeFormt(weibo.create_tiem)}},模拟器中显示NaN，如果wxml中使用{{util.timeFormt(create_tiem)}}，js中var crate_time = weibo[0].create_time.toString()；进行转换，那么所有信息显示的时间都是一样的。下图第一张图，直接格式化数据库时间，显示NaN，第二张图，在JS中把date对象转换成字符串，显示的时间是一样的。这个时间格式化如何解决？ [图片][图片] 云函数代码：   return await db.collection("weibo").add({     data: {       create_time:db.serverDate(),       // create_time:new Date(db.serverDate()).toLocaleDateString(),       device:device       }            })     }  wxml代码： <view class="detail-info">   <view class="time">{{util.timeFormat(weibo.create_time)}}</view> // 模拟器得到的时间是NaN <view class="time">{{util.timeFormat(create_time)}}</view> // 模拟器得到是时间如图二，显示的时间是一样的。   <view class="from">来自{{weibo.device}}</view> </view> JS代码： loadWeibos(){     const that = this;     db.collection("weibo").limit(10).get().then(res => {         //  console.log(res);         const weibo = res.data;         console.log(weibo);         var create_time = weibo[0].create_time.toString(); // 把对象转换成字符串         console.log(create_time);         that.setData({             weibo:weibo,             create_time:create_time         })      })     }, 代码片段：https://developers.weixin.qq.com/s/XruBZhmh7CRC

做了个登录页面，在页面中用globalData时为null，数据库里面有信心，每次刷新都要重新登录，这个问题怎么解决，求大师帮帮忙。 [图片][图片] me.js代码 const app = getApp(); // const db = wx.cloud.database(); Page({     /**      * 页面的初始数据      */     data: {         },     /**      * 生命周期函数--监听页面加载      */     onLoad(options) {          console.log(app.globalData.userInfo)         this.setData({          userInfo:app.globalData.userInfo      })     },     // 获取头像     getAvatar(event){        console.log(event.detail.avatarUrl);//临时头像路劲地址        let avatarUrl = event.detail.avatarUrl;//临时地址        let suffix = /\.[^\.]+$/.exec(avatarUrl)[0];        wx.cloud.uploadFile({            cloudPath: 'loginImages/' + new Date().getTime() + suffix,            filePath:avatarUrl  //上传到云端的路劲，        }).then(res => {            console.log(res.fileID);            this.setData({                avatarUrl:res.fileID            })        })     },     login(event){         console.log(event.detail.value.nickName);         let nickName =event.detail.value.nickName;         if(!nickName){             wx.showToast({                 title:'请填写昵称',                 icon:'error'             })             return         }         if(!this.data.avatarUrl){             wx.showToast({                 title:'请上传头像',                 icon:'error'             })             return         }         var that = this;         console.log(app.globalData.openid);         wx.cloud.database().collection('login_users').where({             _openid:app.globalData.openid         }).get({             success(res){                 console.log(res)                 if(res.data.length == 0){                     //添加记录到数据库                     wx.cloud.database().collection('login_users').add({                         data:{                             num:Date.now(),//！QQ号                             avatarUrl:that.data.avatarUrl,                             nickName:nickName                         },                         success(res){                             console.log(res)                             wx.showToast({                                 title:'登陆成功',                             })                             //设置userInfo这个对象                             let userInfo = {};                             userInfo.avatarUrl = that.data.avatarUrl;                             userInfo.nickName = nickName;                             that.setData({                                 userInfo                             })                             // //第一次登录成功后获取最新用户信息                             that.getUseInfo()                         }                     })                 }else{                     that.setData({                         userInfo:res.data[0]                     })                 }             }           })     },     loginOut(){         // console.log(event);         app.globalData.userInfo = null         this.setData({             userInfo:null         })     },     //修改个人信息     editUserinfo(){        wx.navigateTo({            url:'edit/edit'        })     },      /**      * 生命周期函数--监听页面显示      */     onShow() {         console.log(app.globalData.userInfo);         this.setData({             userInfo:app.globalData.userInfo         })              },        //获取用户信息     getUseInfo(){         let that = this;         wx.cloud.database().collection('login_users').where({             _openid:app.globalData.openid           }).get({             success(result){               console.log(result)               app.globalData.userInfo = result.data[0]             }           })     } }) aapp.js代码 App({   onLaunch: function () {     if (!wx.cloud) {       console.error('请使用 2.2.3 或以上的基础库以使用云能力');     } else {       wx.cloud.init({         env:'',         traceUser: true,       });     }     //获取用户的openid     var that = this;     wx.cloud.callFunction({       name:'getOpenid',       success(res){         console.log(res);         that.globalData.openid = res.result.openid         //查找数据库用户表里面是否有这个用户记录         wx.cloud.database().collection('login_users').where({           _openid:res.result.openid         }).get({           success(result){             console.log(result)             that.globalData.userInfo = result.data[0]           }         })       }     }) }，  globalData:{     userInfo:null,     openid:null   } });

不管是打开官方授权的代码片段也好，还是怎么样，当点击头像或者昵称时就报这个错， globalThis is not defined，请问各位大师，这个怎么解决？ [图片][图片]

如图所示的布局，让所有列表跳转到一个页面，在pages页面中设置跳转正常，做成components组件时，显示id值为空，请问这个id值怎么传？ [图片] [图片] 代码： components代码： <!--components/indextitle/indextitle.wxml--> <view class="title-list" >    <navigator class="title-group" wx:for="{{items}}" wx:key="item" url="{{listUrl}}" data-index="{{index}}" >       <image class="thumbnail" src="{{item.imgUrl}}" mode="" />       <text class="title">{{item.name}}</text>    </navigator>  </view> js代码   properties: {       items:{          type:Object,          value:{}       },       listUrl:{          type:String,          value:''       },       index:{          type:Array,          value:[]       }    }, pages页面代码： <indextitle items="{{title}}" listUrl="/pages/list/list?id={{index}}"></indextitle> js代码：  data: {       title:[         {imgUrl:"../../images/automation.png",name:"自动化招聘"},         {imgUrl:"../../images/recruit-blue.png",name:"全职招聘"},         {imgUrl:"../../images/lin.png",name:"临时工招聘"},         {imgUrl:"../../images/part-tioe.png",name:"兼职招聘"},         {imgUrl:"../../images/graduates.png",name:"毕业生招聘"},         {imgUrl:"../../images/worker.png",name:"找工人"},         {imgUrl:"../../images/carpool-green.png",name:"拼车"},         {imgUrl:"../../images/invite.png",name:"邀请好友"},       ],    },