微信小程序实现多行文字滚动

<view class="full" style="height:100%;overflow:hidden">
  <swiper autoplay="true" interval="3000" duration="500" circular="true" vertical="true" style="height:100%">
  <swiper-item wx:for="{{topnewslist}}" wx:key="{{index}}" catchtouchmove='catchTouchMove'>
   <van-notice-bar scrollable="{{false}}" bindtap="tonewsdetail" wx:for="{{item}}" wx:for-item="it" wx:key="{{index}}" data-newsid="{{it.new_id}}" style="width:100%" text="{{it.new_topic}}" />
  </swiper-item>
  </swiper>
</view>

swiper-item {
 height: 100%;
}

//index.js
//获取应用实例
import api from "../../utils/api.js"
var token = ''
const app = getApp()

Page({
 data: {
 topnewslist:[]
 },
 onLoad: function () {
 },
 tonewsdetail(e){
 var newsid=e.currentTarget.dataset.newsid;
 wx.navigateTo({
  url: '/pages/newsdetail/newsdetail"mpapi/mpmnews.ashx", { action:'toplist',token:token}).then((res)=>{
  if(res.code==1){
  //res.list=[{"new_id":1,"new_topic":"111"},{"new_id":2,"new_topic":"222"},{"new_id":3,"new_topic":"333"},{"new_id":4,"new_topic":"444"}]
  this.setData({
   topnewslist: this.splitArr(res.list, 2) //调用
   //调用之后[[{"new_id":1,"new_topic":"111"},{"new_id":2,"new_topic":"222"}],[{"new_id":3,"new_topic":"333"},{"new_id":4,"new_topic":"444"}]]
  })
  }
 })
 },
 /**
 * 分割数组创建二维数组封装
 * @param data 数组
 * @param senArrLen 需要分割成子数组的长度
 */
 splitArr(data, senArrLen){
 //处理成len个一组的数据
 let data_len = data.length;
 let arrOuter_len = data_len % senArrLen === 0 "_blank" href="//www.jb51.net/Special/900.htm">《微信小程序开发教程》小编为大家精心整理的，希望喜欢。

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