实现效果：当置顶后，需要按着置顶的时长，自动取消置顶。 如图：当置顶时长到了之后自动删除topping字段，以达到自动取消置顶的效果，自己写了一段代码，能够实现自动删除这个字段，但是当所有数据中都没有topping这个字段后就会报错。哪位大师提供一个更好的实现案例学习下 [图片] [图片] 代码： // 取消置顶     async timer(){         await app.loadUserInfo();         let openid = await app.globalData.userInfo._openid;         const toppings = await db.collection("wehicle").where({             _openid: openid         }).get()         if(toppings){             const wehicles = toppings.data;             console.log(wehicles);             wehicles.forEach((wehicle, index) => {                 const id = wehicle._id;                 console.log(id);                 if(wehicle.topping.timelength){                     setTimeout(function(){                         db.collection("wehicle").doc(id).update({                             data:{                                 "topping":_.remove()                             }                         })                     },wehicle.topping.timelength*1000*60)                 }              })         }     },

如图：想要实现的效果，当点击了弹窗的确定按钮后更新数据库字段，在页面及时显示“顶”这个字，在代码中设置0：const wehicle = that.data.wehicles[0],就能够实现效果，如果设置为id，const wehicle = that.data.wehicles[id],就实现不了。这个id，是点击置顶按钮时的id值，这是什么原因呢？ [图片] /**      * 置顶弹窗      */     showCode(event) {         console.log(event);         const id = event.currentTarget.dataset.id         console.log(id)         this.setData({             show_input: true,             id: id         })     },     // 获取input输入框     getCodeValue(e) {         this.setData({             code: e.detail.value,         })     },     // 关闭弹窗     closeModal(e) {         console.log(e);         this.setData({             show_input: false         })     },     // 点击确定     async confirm(e) {         const that = this;         const itmelength = that.data.code;         const id = that.data.id; // 点击弹窗按钮的id，         const wehicle = that.data.wehicles[0]; // 传入0能够实现效果，当传入id时，就不能实现。         console.log(wehicle)         wx.showLoading({             title: "正在置顶中..."         })         wx.cloud.callFunction({            name: "topping",            data: {                id: id,                itmelength: itmelength,            },            success: res => {                console.log(res);                const updated = res.result.stats.updated;                if(!wehicle.topping){                     wehicle.topping = [itmelength]                }else{                     wehicle.topping.push(itmelength)                }                const wehicles = that.data.wehicles;                console.log(wehicles)                wehicles[id] = wehicle                console.log(wehicles[id]);                that.setData({                     wehicles:wehicles                })                if (updated) {                   wx.hideLoading();                   wx.showToast({                      title: "恭喜！置顶成功！",                   })                   setTimeout(function () {                      that.setData({                         show_input: false,                      })                   }, 800)                } else {                   wx.showToast({                      title: "置顶失败，请重新置顶！",                   })                }             }          })     },

如图：当点击确定后，更新数据库，在数据库增加一个字段，在JS中能够成功添加，当在云函数中实现时，添加不了 [图片] 在这段代码中，能够成功添加： confirm(e){         const that = this;         console.log(e);         const itmelength = that.data.code;         const id = that.data.id;         const wehicles = that.data.wehicles;         db.collection("wehicle").doc(id).update({             data:{                 top:{                     itmelength:itmelength,                     pud_data:new Date(),                  }             }         })         .then(res => {             console.log(res);         })     },  在云函数中添加不了： // 云函数入口函数 exports.main = async (event, context) => {     const wxContext = cloud.getWXContext();     const openid = wxContext.OPENID;     const itmelength = event.itmelength;     const id = event.id;     console.log(id);     return await db.collection("wehicle").doc(id).update({         data:{             "top":_.push({                itmelength:itmelength,                pud_data:new Date(),             })         }     }) } js代码： confirm(e){         const that = this;         console.log(e);         const itmelength = that.data.code;         const id = that.data.id;         const wehicles = that.data.wehicles;         wx.cloud.callFunction({             name:'topping',             data:{                 top:{                    itmelength:itmelength,                 }             },             success:res => {                 console.log(res);             }         }) }

如图中点击跳转到详情页，url中的type值怎么传？ [图片][图片] <segment-carpool items="{{items}}" result="{{result}}" resultthree="{{result3}}" resultfous="{{result4}}"  binditemchengde="onItemChengdeEvent" defaultIndex="0">   <view slot="0" class="segment-page wehicle-page">   </view>   <view slot="1" class="segment-page people-page">     <view wx:if="{{isQuerying == true}}">       <view class="comment-title">全部信息（共有{{result1}}条）</view>       <sumlistone wx:for="{{listones}}" wx:key="key" wx:for-item="listone" list1="{{listone}}"></sumlistone>     </view>     <view wx:else>       <view class="comment-title">全部信息（共有{{result1}}条）</view>       <wehicle wx:for="{{listones}}" wx:key="key" wx:for-item="listone" list1="{{listone}}" items="items.item"  detailurl="../detail/detail?type={{itemchengde.items}}&index={{index}}"></wehicle>     </view>   </view>   <view slot="2" class="segment-page train-page">   </view>   <view slot="3" class="segment-page money-page">   </view>   <view slot="4" class="segment-page money-page">   </view> </segment-carpool> <loadingmore hasmore="{{hasmore}}"></loadingmore> JS代码 data: {     items: ["全部", "我要找车", "我要找人", "我找货车", "我要找货"],   },  onItemChengdeEvent(event) {     console.log(event)     const that = this;     var index = event.detail.index;     that.setData({       index:index     })   },

如图，当点击查询后清空输入框的值，但是上拉加载更多时失效，获取不到数据，这个要怎么做？ [图片] WXML代码： <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> JS代码： data: {     hasmore: true,     sumlistress:[],     startPoint:'',     goal: '',     isQuerying: false,   },   /**    * 获取起点输入信息    */   onStartPointEvent(event) {     const that = this;     const startPoint = event.detail.value     console.log('起点', startPoint);     that.setData({       startPoint: startPoint     })   },   /**    * 获取终点输入信息    */   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    */   async formSubmit(start = 0) {     const that = this;     that.setData({       isQuerying: true,     })          let promite = db.collection("wehicle").where({       startPoint: that.data.startPoint,       goal: that.data.goal,     })     if(start>0){       promite = promite.skip(start)     }     let pro = await promite.limit(2).orderBy('create_time','desc').get()     console.log(pro)     if(pro){       const sumlistress = pro.data;       console.log(sumlistress);       promite.count().then(res => {         console.log(res)         that.setData({           result:res.total           })       })       let hasmore = false       let newsumlistress = [];         if (start > 0) {           newsumlistress = that.data.sumlistress.concat(sumlistress);         } else {           newsumlistress = sumlistress;         }         newsumlistress.forEach((wehicle, index) => {            wehicle.create_time = wehicle.create_time.toString();         })         that.setData({           sumlistress: newsumlistress,           hasmore: hasmore,           startPoint:'',           goal: ''         })     } },  /**    * 页面上拉触底事件的处理函数    */   onReachBottom() {     let hasmore = true;     if(this.data.wehicles.length == 0 && this.data.sumlistress.length == 0){       hasmore = false     }     this.setData({       hasmore:hasmore     })     if(!this.data.isQuerying) {       this.lowdrelease(this.data.wehicles.length);       }else{       this.formSubmit(this.data.sumlistress.length);     }     },     

当只有一条或者没有数据的情况下，一直显示正在加载中，如果全部项下拉加载出数据后，才会显示没有更多如图1。再就是当下拉加载时，第二次下拉时显示的没有更多数据，而不是显示正在加载中如图2。好像是和其他项有冲突。这个问题怎么解决？ 图片：[图片][图片] 代码： <!--components/loadingmore/loadingmore.wxml--> <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> 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">     <view class="comment-title">全部信息（共有{{result}}条）</view>     <whole wx:for="{{wehicles}}" wx:key="wehicle" wx:for-item="wehicle" wehicle="{{wehicle}}"></whole>   </view>   <view slot="1" class="segment-page people-page">     <view class="comment-title">全部信息（共有{{result1}}条）</view>     <wehicle wx:for="{{listones}}" wx:key="key" wx:for-item="listone" list1="{{listone}}"></wehicle>   </view>   <view slot="2" class="segment-page train-page">     <view class="comment-title">全部信息（共有{{result2}}条）</view>     <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">     <view class="comment-title">全部信息（共有{{result3}}条）</view>     <train wx:for="{{listthrees}}" wx:key="key" wx:for-item="listthree" list3="{{listthree}}"></train>   </view>   <view slot="4" class="segment-page money-page" >     <view class="comment-title">全部信息（共有{{result4}}条）</view>     <money wx:for="{{listfours}}" wx:key="key" wx:for-item="listfour" list4="{{listfour}}"></money>   </view> </segment-carpool>  <loadingmore hasmore="{{hasmore}}"></loadingmore> index.jd代码： const db = wx.cloud.database(); 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,     result1: 0,     result2: 0,     result3: 0,     result4: 0,     startPoint:'',     goal: '',     isQuerying: false,     list:[],     listones:[],     listtwos:[],     listthrees:[],     listfours:[],   },   /**    * 获取起点输入信息    */   onStartPointEvent(event) {     const that = this;     const startPoint = event.detail.value     console.log('起点', startPoint);     that.setData({       startPoint: startPoint     })   },   /**    * 获取终点输入信息    */   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(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(5).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 (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,     })    });     list.count().then(res => {       console.log(res)       that.setData({         result:res.total       })     })     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(5).orderBy("create_time", "desc").get().then(res => {         const listones = res.data;         let hasmore = true         if (listones.length == 0) {           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,         })       });     list1.count().then(res => {       console.log(res)       that.setData({         result1:res.total       })     })     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(5).orderBy("create_time", "desc").get().then(res => {         console.log(res);       const listtwos = res.data;       let hasmore = true       // let hasmore = listtwos.length > 0;       if (listtwos.length == 0) {         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,       })     });       list2.count().then(res => {         console.log(res)         that.setData({           result2:res.total         })       })       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(5).orderBy("create_time", "desc").get().then(res => {           console.log(res);         const listthrees = res.data;         let hasmore = true         // let hasmore = listthrees.length > 0;         if (listthrees.length == 0) {           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,         })       });       list3.count().then(res => {         console.log(res)         that.setData({           result3:res.total         })       })       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(5).orderBy("create_time", "desc").get().then(res => {           console.log(res);         const listfours = res.data;         let hasmore = true         // let hasmore = listfours.length > 0;         if (listfours.length == 0) {           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,         })       });     list4.count().then(res => {         console.log(res)         that.setData({           result4:res.total         })       })     // that.updateCount(index);     that.setData({       startPoint:'',       goal:'',     })   },    /**    * 获取选项卡计数    */   onItemChengdeEvent(event) {     const that = this;     var index = event.detail.index;   },   /**    * 获取数据库数据    */   lowdrelease(start = 0) {     const that = this;     let list = db.collection("wehicle");       if (start > 0) {         list = list.skip(start);       }       list.limit(5).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;         }         newWehicles.forEach((wehicle, index) => {           wehicle.create_time = wehicle.create_time.toString();         })         that.setData({           wehicles: newWehicles,           hasmore: hasmore,         })       });            list.count().then(res => {           console.log(res)           that.setData({             result:res.total           })         })              let list1 = db.collection("wehicle").where({carpool:'我要找车'});       if (start > 0) {         list1 = list1.skip(start);       }       list1.limit(5).orderBy("create_time", "desc").get().then(res => {           console.log(res);         const listones = res.data;         let hasmore = true         if (listones.length == 0) {           hasmore = false         }         let newones = [];         if (start > 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,         })       });         list1.count().then(res => {           console.log(res)           that.setData({             result1:res.total           })         })       let list2 = db.collection("wehicle").where({carpool:'我要找人'});       if (start > 0) {         list2 = list2.skip(start);       }       list2.limit(5).orderBy("create_time", "desc").get().then(res => {           console.log(res);         const listtwos = res.data;         let hasmore = true         if (listtwos.length == 0) {           hasmore = false         }         let newtwos = [];         if (start > 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,         })       });         list2.count().then(res => {         console.log(res)         that.setData({           result2:res.total         })       })             let list3 = db.collection("wehicle").where({carpool:'我找货车'});       if (start > 0) {         list3 = list3.skip(start);       }       list3.limit(5).orderBy("create_time", "desc").get().then(res => {           console.log(res);         const listthrees = res.data;         let hasmore = true         // let hasmore = listthrees.length > 0;         if (listthrees.length == 0) {           hasmore = false         }         let newthrees = [];         if (start > 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,         })       });         list3.count().then(res => {         console.log(res)         that.setData({           result3:res.total         })       })              let list4 = db.collection("wehicle").where({carpool:'我要找货'});       if (start > 0) {         list4 = list4.skip(start);       }       list4.limit(5).orderBy("create_time", "desc").get().then(res => {           console.log(res);         const listfours = res.data;         let hasmore = true         // let hasmore = listfours.length > 0;         if (listfours.length == 0) {           hasmore = false         }         let newfours = [];         if (start > 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,         })       });          list4.count().then(res => {         console.log(res)         that.setData({           result4:res.total         })       })       },   /**    * 生命周期函数--监听页面显示    */   onShow() {     this.lowdrelease(0);   },   /**    * 页面相关事件处理函数--监听用户下拉动作    */   onPullDownRefresh() {     this.lowdrelease(0);     this.setData({       isQuerying:false     })      wx.stopPullDownRefresh();   },   /**    * 页面上拉触底事件的处理函数    */   onReachBottom() {       if(!this.data.isQuerying) {         this.lowdrelease(this.data.wehicles.length);          }else{         this.data.isQuerying       }     }, })

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);   },

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);   }, })