微信小程序做了分页，在第二页读取的数据不能覆盖上页数据情况下，上页数据会保留

微信公开课小程序热门讨论关于「微信小程序做了分页，在第二页读取的数据不能覆盖上页数据情况下，上页数据会保留」的小程序开发问题
补充:微信小程序做了分页，在第二页读取的数据不能覆盖上页数据情况下，上页数据会保留
展开:第二页JSON返回只有两条数据WXML:<viewclass=container<viewclass=arrow<viewclass=arrowleftbindtap=Lclickimg<imagesrc=imagesarrowleftpngstyle=width:30px;height:16px;marginleft:40%;<image<view<pickerbindchange=bindPickerChangevalue={{index}}range={{array}}<viewclass=picker第{{array[index]}}页<view<picker<viewclass=arrowrightbindtap=Rclickimg<imagesrc=imagesarrowrightpngstyle=width:30px;height:16px;marginleft:44%;<image<view<view<navigatorclass=navurl=pagesuploadupload?tname={{itemtname}}&tcontent={{itemtcontent}}&tid={{itemtid}}&price={{itemprice}}&place={{itemplace}}wx:for={{items}}wx:key<viewclass=item<viewclass=itemtitle{{itemtname}}<view<viewclass=itemcontent{{itemtcontent}}<view<viewclass=itembottom<view{{itemtm}}<view<view{{itemplace}}<view<view{{itemtid}}<view<view<viewclass=itemprice<viewclass=price{{itemprice100}}元票<view<view<view<navigator<viewJS:onShow:function(){varthat=this;varindex=thatdataindex;wxrequest({url:http:localhost:8080VoteSystemServerUserCountRow,data:{flag:1},method:GET,dataType:json,responseType:text,success:function(res){vararr=resdata;vararray=newArray();for(leti=0;i<arrpageCount;i++){array[i]=i+1;}thatsetData({array:array})}});待审核页，传入thatdataindexwxrequest({url:http:localhost:8080VoteSystemServerUserdoFindAll,data:{Type:status,SearchName:审核通过,sign:=,Page:parseInt(index)+parseInt(1)},method:GET,dataType:json,responseType:text,success:function(res){vararr=resdata;for(leti=0;i<arrlength;i++){vartid=arr[i]tid;vartname=arr[i]tname;vartcontent=arr[i]tcontent;vartnumber=arr[i]tnumber;varname=arr[i]name;varphone=arr[i]phone;varwxname=arr[i]wxname;vartm=arr[i]tm;varstatus=arr[i]status;varprice=arr[i]price;varurl=arr[i]url;varprovince=arr[i]province;varcity=arr[i]city;varregion=arr[i]region;varplace=province+city+region;vartid_data=items[+i+]tidvartname_data=items[+i+]tnamevartcontent_data=items[+i+]tcontentvartnumber_data=items[+i+]tnumbervarname_data=items[+i+]namevarphone_data=items[+i+]phonevarwxname_data=items[+i+]wxnamevartm_data=items[+i+]tmvarstatus_data=items[+i+]statusvarprice_data=items[+i+]pricevarurl_data=items[+i+]urlvarprovince_data=items[+i+]provincevarcity_data=items[+i+]cityvarregion_data=items[+i+]regionvarplace_data=items[+i+]placethatsetData({id:i,[tid_data]:tid,[tname_data]:tname,[tcontent_data]:tcontent,[tm_data]:tm,[price_data]:price,[tid_data]:tid,[place_data]:place,[city_data]:city,[province_data]:province,[region_data]:region})}},fail:function(res){},complete:function(res){},})}bindPickerChange:function(e){consolelog(picker发送选择改变，携带值为,edetailvalue);thissetData({index:edetailvalue});wxstartPullDownRefresh();},Lclickimg:function(e){varthat=this;varindex=thatdataindex;if(index0){thatsetData({index:parseInt(index)parseInt(1)})consolelog(索引:+thatdataindex);wxstartPullDownRefresh();}},Rclickimg:function(e){varthat=this;varlen=thatdataarraylengthvarindex=thatdataindex;if(index<len1){thatsetData({index:parseInt(index)+parseInt(1)})consolelog(索引:+thatdataindex);wxstartPullDownRefresh();}},onPullDownRefresh:function(){thisonLoad();varthat=this;varindex=thatdataindex;wxrequest({url:http:localhost:8080VoteSystemServerUserCountRow,data:{flag:1},method:GET,dataType:json,responseType:text,success:function(res){vararr=resdata;vararray=newArray();for(leti=0;i<arrpageCount;i++){array[i]=i+1;}thatsetData({array:array})}});待审核页，传入thatdataindexwxrequest({url:http:localhost:8080VoteSystemServerUserdoFindAll,data:{Type:status,SearchName:审核通过,sign:=,Page:parseInt(index)+parseInt(1)},method:GET,dataType:json,responseType:text,success:function(res){vararr=resdata;for(leti=0;i<arrlength;i++){vartid=arr[i]tid;vartname=arr[i]tname;vartcontent=arr[i]tcontent;vartnumber=arr[i]tnumber;varname=arr[i]name;varphone=arr[i]phone;varwxname=arr[i]wxname;vartm=arr[i]tm;varstatus=arr[i]status;varprice=arr[i]price;varurl=arr[i]url;varprovince=arr[i]province;varcity=arr[i]city;varregion=arr[i]region;varplace=province+city+region;vartid_data=items[+i+]tidvartname_data=items[+i+]tnamevartcontent_data=items[+i+]tcontentvartnumber_data=items[+i+]tnumbervarname_data=items[+i+]namevarphone_data=items[+i+]phonevarwxname_data=items[+i+]wxnamevartm_data=items[+i+]tmvarstatus_data=items[+i+]statusvarprice_data=items[+i+]pricevarurl_data=items[+i+]urlvarprovince_data=items[+i+]provincevarcity_data=items[+i+]cityvarregion_data=items[+i+]regionvarplace_data=items[+i+]placethatsetData({id:i,[tid_data]:tid,[tname_data]:tname,[tcontent_data]:tcontent,[tm_data]:tm,[price_data]:price,[tid_data]:tid,icon:,[place_data]:place,[city_data]:city,[province_data]:province,[region_data]:region})}},fail:function(res){},complete:function(res){wxstopPullDownRefresh()},})},JSON返回值:第一页[ {   city:长沙市,   id:24,   price:30,   province:湖南省,   region:芙蓉区,   status:审核通过,   tcontent:帮忙投5号，每用户可投3票,   tid:SGB2018111900001,   tm:2018111908:27:36,   tname:测试1901,   tnumber:2,   url:http:931248395axnofollow51wtpcomindexphptoupiaoh5detail?id=1910056&vid=931248395&from=timeline,   wxname:oRPyJ5TTK7RR8XmwxJkVMuyg5WFA }, {   city:武汉市,   id:23,   price:10,   province:湖北省,   region:黄陂区,   status:审核通过,   tcontent:测试,   tid:SGB2018111700005,   tm:2018111721:54:31,   tname:测试1703,   tnumber:1,   url:https:mpweixinqqcomsN7hU912MFI7AoQsqnn0QHA,   wxname:oRPyJ5dnkYwOs_4Wn1DwipZ108Fk }, {   city:武汉市,   id:22,   price:15,   province:湖北省,   region:新洲区,   status:审核通过,   tcontent:投37,   tid:SGB2018111700004,   tm:2018111721:49:58,   tname:测试1702,   tnumber:2,   url:http:chmdachuwcomaixinpluginphp?id=tom_weixin_vote&mod=phb&vid=4&nav=1&from=timeline&isappinstalled=0,   wxname:oRPyJ5TTK7RR8XmwxJkVMuyg5WFA }, {   city:武汉市,   id:21,   price:30,   province:湖北省,   region:武昌区,   status:审核通过,   tcontent:帮忙投第四，你奋斗的样子，真美,   tid:SGB2018111700003,   tm:2018111721:19:10,   tname:17测试,   tnumber:3,   url:https:mpweixinqqcoms7BEFvIjN9licgQJ85sbUbA,   wxname:oRPyJ5dnkYwOs_4Wn1DwipZ108Fk }, {   city:武汉市,   id:20,   price:30,   province:湖北省,   region:江夏区,   status:审核通过,   tcontent:4,   tid:SGB2018111700002,   tm:2018111709:00:06,   tname:4,   tnumber:1,   url:http:wx5443vshangtongcom?ac=votemb&tid=8377&id=3512&mbid=511975&from=groupmessage,   wxname:oRPyJ5UXHjNC0etLJpjcpg2L96g }, {   city:武汉市,   id:19,   price:30,   province:湖北省,   region:江夏区,   status:审核通过,   tcontent:3,   tid:SGB2018111700001,   tm:2018111700:01:34,   tname:3,   tnumber:1,   url:http:wx5443vshangtongcom?ac=votemb&tid=8377&id=3512&mbid=511975&from=groupmessage,   wxname:oRPyJ5UXHjNC0etLJpjcpg2L96g }, {   city:武汉市,   id:18,   price:30,   province:湖北省,   region:江夏区,   status:审核通过,   tcontent:2,   tid:SGB2018111600004,   tm:2018111623:46:34,   tname:2,   tnumber:3,   url:http:wx5443vshangtongcom?ac=votemb&tid=8377&id=3512&mbid=511975&from=groupmessage,   wxname:oRPyJ5UXHjNC0etLJpjcpg2L96g }, {   city:武汉市,   id:17,   price:30,   province:湖北省,   region:江夏区,   status:审核通过,   tcontent:1,   tid:SGB2018111600003,   tm:2018111622:26:52,   tname:1,   tnumber:1,   url:http:wx5443vshangtongcom?ac=votemb&tid=8377&id=3512&mbid=511975&from=groupmessage,   wxname:oRPyJ5UXHjNC0etLJpjcpg2L96g }, {   city:undefined,   id:13,   price:30,   province:undefined,   region:undefined,   status:审核通过,   tcontent:测试,   tid:SGB2018111600002,   tm:2018111620:25:24,   tname:测试,   tnumber:1,   url:http:wx5443vshangtongcom,   wxname:undefined }, {   city:undefined,   id:12,   price:30,   province:undefined,   region:undefined,   status:审核通过,   tcontent:123456,   tid:SGB2018111600001,   tm:2018111619:55:04,   tname:特别的,   tnumber:3,   url:http:wx5443vshangtongcomindexphp,   wxname:undefined }]JSON返回值:第二页[ {   city:武汉市,   id:9,   price:30,   province:湖北省,   region:黄陂区,   status:审核通过,   tcontent:测试,   tid:SGB2018110800001,   tm:2018110814:46:17,   tname:测试,   tnumber:5,   url:https:wwwbaiducom,   wxname:oRPyJ5dnkYwOs_4Wn1DwipZ108Fk }, {   city:武汉市,   id:7,   price:30,   province:湖北省,   region:江夏区,   status:审核通过,   tcontent:测试1内容,   tid:SGB2018110600001,   tm:2018110616:33:58,   tname:测试1,   tnumber:1,   url:1,   wxname:oRPyJ5UXHjNC0etLJpjcpg2L96g }]即速小程序：请求第二页的时候先把要渲染的数组设为空不就行了：你请求第二页的时候，重新设置一下list=[]不就行了吗：你渲染得list里面肯定不止两个item：这种分页应该在wxml里面通过wx:if判断那些数据需要渲染，不知道你是不是这么做的：交出分页的代码片段分析一下
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