如图：当在全部项查询的时候，显示正常，切换点击其他项，计数也显示正常。当我在其它项点击查询的时候，显示的计数都是全部项的计数，也就是说，全部项查询的计数是多少，在其他项点击查询的时候显示的都是全部项的计数。如果再切换各项的时候，显示的计数又正常了。请问这个问题怎么解决？ [图片] components/segment/wxml代码 <view class="comment-list-group">   <view class="comment-title">全部信息（共有{{result}}条）</view> </view> components/segment/wxml代码  properties: {    result :{      type:Number,      value:0    }, }, index.wxml代码 <segment-carpool items="{{items}}" result="{{result}}" resultthree="{{result3}}" resultfous="{{result4}}" binditemchengde="onItemChengdeEvent" defaultIndex="0" >   <view slot="0" class="segment-page wehicle-page">     <whole wx:for="{{wehicles}}" wx:key="wehicle" wx:for-item="wehicle" wehicle="{{wehicle}}"></whole>   </view>   <view slot="1" class="segment-page people-page">     <wehicle wx:for="{{listones}}" wx:key="key" wx:for-item="listone" list1="{{listone}}"></wehicle>   </view>   <view slot="2" class="segment-page train-page">     <people wx:if="{{listtwos}}" wx:for="{{listtwos}}" wx:key="key" wx:for-item="listtwo" list2="{{listtwo}}"></people>   </view>   <view slot="3" class="segment-page money-page">     <train wx:for="{{listthrees}}" wx:key="key" wx:for-item="listthree" list3="{{listthree}}"></train>   </view>   <view slot="4" class="segment-page money-page" >     <money wx:for="{{listfours}}" wx:key="key" wx:for-item="listfour" list4="{{listfour}}"></money>   </view> </segment-carpool>  <loadingmore hasmore="{{hasmore}}" nomore="{{nomore}}"></loadingmore> index.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,     nomore: false,     wehicles: [],     result: 0,     startPoint: [],     goal: [],     isQuerying: false,     list:[],     listones:[],     listtwos:[],     listthrees:[],     listfours:[],   },   /**    * 生命周期函数--监听页面加载    */   onLoad(options) {   },   /**    * 按条件查询数据    */   formSubmit(event) {     console.log(event);     const that = this;     that.setData({       isQuerying: true     })     let list = db.collection("wehicle").where({       startPoint: that.data.startPoint,       goal: that.data.goal,     });     if (event > 0) {       list = list.skip(event);     }     list.limit(10).orderBy("create_time", "desc").get().then(res => {       console.log(res);       const wehicles = res.data;       let nomore = true;       let hasmore = true       if (!wehicles) {         nomore = false       } else {         hasmore = false       }       let newWehicles = [];       if (event > 0) {         newWehicles = that.data.wehicles.concat(wehicles);       } else {         newWehicles = wehicles;       }       newWehicles.forEach((wehicle, index) => {         wehicle.create_time = wehicle.create_time.toString();       })       that.setData({         wehicles: newWehicles,         hasmore: hasmore,         nomore: nomore,       })     });     let list1 = db.collection("wehicle").where({       startPoint: that.data.startPoint,       goal: that.data.goal,       carpool:'我要找车'     });       if (event > 0) {         list1 = list1.skip(event);       }       list1.limit(10).orderBy("create_time", "desc").get().then(res => {           console.log(res);         const listones = res.data;         let nomore = true;         let hasmore = true         if (!listones) {           nomore = false         } else{           hasmore = false         }         let newones = [];         if (event > 0) {           newones = that.data.listones.concat(listones);         } else {           newones = listones;         }         newones.forEach((wehicle, index) => {           wehicle.create_time = wehicle.create_time.toString();         })         that.setData({           listones: newones,           hasmore: hasmore,           nomore: nomore         })       });       let list2 = db.collection("wehicle").where({         startPoint: that.data.startPoint,         goal: that.data.goal,         carpool:'我要找人'       });       if (event > 0) {         list2 = list2.skip(event);       }       list2.limit(10).orderBy("create_time", "desc").get().then(res => {           console.log(res);         const listtwos = res.data;         let nomore = true;         let hasmore = true         if (!listtwos) {           nomore = false         } else{           hasmore = false         }         let newtwos = [];         if (event > 0) {           newtwos = that.data.listtwos.concat(listtwos);         } else {           newtwos = listtwos;         }         newtwos.forEach((wehicle, index) => {           wehicle.create_time = wehicle.create_time.toString();         })         that.setData({           listtwos: newtwos,           hasmore: hasmore,           nomore: nomore         })       });       let list3 = db.collection("wehicle").where({         startPoint: that.data.startPoint,         goal: that.data.goal,         carpool:'我找货车'       });       if (event > 0) {         list3 = list3.skip(event);       }       list3.limit(10).orderBy("create_time", "desc").get().then(res => {           console.log(res);         const listthrees = res.data;         let nomore = true;         let hasmore = true         if (!listthrees) {           nomore = false         } else{           hasmore = false         }         let newthrees = [];         if (event > 0) {           newthrees = that.data.listthrees.concat(listthrees);         } else {           newthrees = listthrees;         }         newthrees.forEach((wehicle, index) => {           wehicle.create_time = wehicle.create_time.toString();         })         that.setData({           listthrees: newthrees,           hasmore: hasmore,           nomore: nomore         })       });       let list4 = db.collection("wehicle").where({         startPoint: that.data.startPoint,         goal: that.data.goal,         carpool:'我要找货'       });       if (event > 0) {         list4 = list4.skip(event);       }       list4.limit(10).orderBy("create_time", "desc").get().then(res => {           console.log(res);         const listfours = res.data;         let nomore = true;         let hasmore = true         if (!listfours) {           nomore = false         } else{           hasmore = false         }         let newfours = [];         if (event > 0) {           newfours = that.data.listfours.concat(listfours);         } else {           newfours = listfours;         }         newfours.forEach((wehicle, index) => {           wehicle.create_time = wehicle.create_time.toString();         })         that.setData({           listfours: newfours,           hasmore: hasmore,           nomore: nomore,         })       });       if(list){         list.count().then(res => {           that.setData({             result: res.total,           })         });       }       else if(list1){         list1.count().then(res => {           that.setData({             result: res.total,           })         });       }       else if(list2){         list2.count().then(res => {           that.setData({             result: res.total,           })         });       }       else if(list3){         list3.count().then(res => {           that.setData({             result: res.total,           })         });       }       else{         list4.count().then(res => {           that.setData({             result: res.total,           })         });       }          },   /**    * 初始化总计数    */   oncount(event) {     const that = this;       db.collection('wehicle').where({}).count().then(res => {         that.setData({           result: res.total         })       });   },   /**    * 获取选项卡计数    */   onItemChengdeEvent(event) {     console.log(event)     const that = this;     var index = event.detail.index;     if (index == 0) {       if(!that.data.isQuerying){         db.collection('wehicle').where({}).count().then(res => {           that.setData({             result: res.total           })         });       }else{         db.collection("wehicle").where({           startPoint: that.data.startPoint,           goal: that.data.goal,         }).count().then(res => {           that.setData({             result: res.total           })         });       }      } else if (index == 1) {       if(!that.data.isQuerying){         db.collection('wehicle').where({carpool: '我要找车',}).count().then(res => {           const result = res.total;           console.log(result)           that.setData({             result: result,           })         });       }else{         db.collection("wehicle").where({           startPoint: that.data.startPoint,           goal: that.data.goal,           carpool:'我要找车'         }).count().then(res => {           that.setData({             result: res.total           })         });       }        } else if (index == 2) {       if(!that.data.isQuerying){         db.collection('wehicle').where({carpool: '我要找人',}).count().then(res => {           const result = res.total;           console.log(result)           that.setData({             result: result,           })         });       }else{         db.collection("wehicle").where({           startPoint: that.data.startPoint,           goal: that.data.goal,           carpool:'我要找人'         }).count().then(res => {           that.setData({             result: res.total           })         });       }      } else if (index == 3) {       if(!that.data.isQuerying){         db.collection('wehicle').where({carpool: '我找货车',}).count().then(res => {           const result = res.total;           console.log(result)           that.setData({             result: result,           })         });       }else{         db.collection("wehicle").where({           startPoint: that.data.startPoint,           goal: that.data.goal,           carpool:'我找货车'         }).count().then(res => {           that.setData({             result: res.total           })         });       }       } else {       if(!that.data.isQuerying){         db.collection('wehicle').where({carpool: '我要找货',}).count().then(res => {           const result = res.total;           console.log(result)           that.setData({             result: result,           })         });       }else{         db.collection("wehicle").where({           startPoint: that.data.startPoint,           goal: that.data.goal,           carpool:'我要找货车'         }).count().then(res => {           that.setData({             result: res.total           })         });       }       }   }, })

如图，每次编译，或者刷新时就会弹出这个问题，请问这个是什么问题？ [图片]

如图，第一次进入页面时，没有数据的情况下应该显示没有更多才对，但是现在是一直显示加载中，除非进行一次上拉动作，才会显示没有更多数据，这个问题怎么解决？ [图片] components(WXML代码): <button class="loading-btn" loading="{{hasmore}}" style="height:{{height}}px;">   <block wx:if="{{hasmore}}">     <text class="loadingtext">{{loadingtext}}</text>   </block>   <block wx:else>     <text class="loadingtext" >{{loadedtext}}</text>   </block> </button> components(js代码): Component({     /**      * 组件的属性列表      */     properties: {        loadingtext:{            type:String,            value:"正在加载中..."        },        loadedtext:{            type:String,            value:"没有更多数据"        },        hasmore:{            type:Boolean,            value:true        },        height:{            type:Number,            value:40        }     }, }) index(wxml代码）： <loadingmore hasmore="{{hasmore}}"></loadingmore> index(js代码）： data: {     hasmore: true,     wehicles: [],   }, 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 => {       //   console.log(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;       }       // console.log(wehicles);       newWehicles.forEach((wehicle, index) => {         wehicle.create_time = wehicle.create_time.toString();       })       that.setData({         wehicles: newWehicles,         hasmore: hasmore       })     })   }, onReachBottom() {       this.lowdrelease(this.data.wehicles.length);   },

问题：如图，通过条件查询后得到是数据，列表中可以正常显示，当查询的数据没有之后，会继续加载全部项的数据，并且查询得到的数据会重新加载一次。 想要的效果：当查询得到的数据加载完之后，应该不再加载数据。显示没有更多数据。如果没有查询操作，正常显示并加载全部项的数据。更多代码可查看代码片段。求大师指点 [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> <form bindsubmit="formSubmit">   <view class="search-input-group">     <view class="input-group">       <input class="search-input" placeholder="出发地" value="{{startPoint}}" bindinput="onStartPointEvent" />       <image class="thumbnail" src="../../images/return.png" />       <input class="search-input" placeholder="终点" value="{{goal}}" bindinput="onGoalEvent"  />     </view>     <button class="search-button" size="mini" formType="submit">查询</button>   </view> </form> <segment-carpool items="{{items}}" countwe="{{result}}" 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 wx:if="{{wehicles.startPoint && wehicles.goal}}" hasmore="{{hasmore}}"></loadingmore> <loadingmore else hasmore="{{hasmore}}"></loadingmore> JS代码： const db = wx.cloud.database(); const _ = db.command Page({   /**    * 页面的初始数据    */   data: {     items: ["全部", "我要找车", "我要找人", "我找货车", "我要找货"],     hasmore: true,     wehicles: [],     result: 0,     startPoint:'',     goal:'',     isQuerying:false   },   /**    * 生命周期函数--监听页面加载    */   onLoad(options) {     this.oncount();   },   onStartPointEvent(event){     const that = this;     const startPoint = event.detail.value;     console.log('起点',startPoint);     that.setData({       startPoint:startPoint     })   },   onGoalEvent(event){     const that = this;     const goal = event.detail.value;     console.log('终点',goal);     that.setData({       goal:goal     })   },   /**    * 按条件查询数据    */   formSubmit(start){     const that = this;     that.setData({       isQuerying:true     })     let promise = db.collection("wehicle").where({         startPoint:that.data.startPoint,         goal:that.data.goal,       });       if(start > 0){         promise = promise.skip(start);       }       promise.limit(10).orderBy("create_itme","desc").get().then(res => {         const wehicles = res.data;         let hasmore = true;         if(wehicles.length == 0 || !wehicles){           hasmore = false         }         let newWehicles = [];         if (start > 0) {             newWehicles = that.data.wehicles.concat(wehicles);         } else {           newWehicles = wehicles;         }         // console.log(wehicles);         newWehicles.forEach((wehicle, index) => {           wehicle.create_time = wehicle.create_time.toString();         })         that.setData({             wehicles: newWehicles,             hasmore: hasmore,             isQuerying:false           })       })          },   oncount() {     const that = this;     db.collection('wehicle').count().then(res => {       that.setData({         result: res.total       })     });   },  /**    * 获取数据库的总数量    */    onItemChengdeEvent(event) {     // console.log(event)     const that = this;     var index = event.detail.index;     let counts = db.collection('wehicle');     const carpool1 = counts.where({carpool: '我要找车',}).count();     const carpool2 = counts.where({carpool: '我要找人',}).count();     const carpool3 = counts.where({carpool: '我找货车',}).count();     const carpool4 = counts.where({carpool: '我要找货',}).count();     let newcarpool = [];      if (index == 1) {       newcarpool = carpool1.then(res => {         const result = res.total;         console.log(result)         that.setData({           result: result,         })       });     } else if (index == 2) {       newcarpool = carpool2.then(res => {         const result = res.total;         console.log(result)         that.setData({           result: result,         })       });     } else if (index == 3) {       newcarpool = carpool3.then(res => {         const result = res.total;         console.log(result)         that.setData({           result: result,         })       });     } else if (index == 4){       newcarpool = carpool4.then(res => {         const result = res.total;         console.log(result)         that.setData({           result: result,         })       });     }else{       newcarpool = counts.count().then(res=>{         const result = res.total;         console.log(result)         that.setData({           result: result,         })       })     }   },   /**    * 获取数据库数据    */   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 => {       //   console.log(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;       }       // console.log(wehicles);       newWehicles.forEach((wehicle, index) => {         wehicle.create_time = wehicle.create_time.toString();       })              that.setData({         wehicles: newWehicles,         hasmore: hasmore       })     })   },   /**    * 生命周期函数--监听页面显示    */   onShow() {     this.lowdrelease();   },   /**    * 页面相关事件处理函数--监听用户下拉动作    */   onPullDownRefresh() {     this.lowdrelease(0);     wx.stopPullDownRefresh();   },   /**    * 页面上拉触底事件的处理函数    */   onReachBottom() {        // this.formSubmit(this.data.wehicles.length)     if(this.data.isQuerying){       this.formSubmit(this.data.wehicles.length)     }else{       this.lowdrelease(this.data.wehicles.length);     }   }, })

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