11--微信小程序 所选项index跳转后获取index项数据

  //页面加载时
  onLoad: function (options) {
    let index = wx.getStorageSync('index')
    console.log(index)
    let teacherinfo = wx.getStorageSync('teacherinfo')[index]
    this.setData({
      teacherinfo
    })
    let classid = this.data.teacherinfo.classid
    this.setData({
      classid
    })
    wx.setStorageSync('classid', classid)
  },

页面获取该条的数据：

{{teacherinfo.classname}}