WeChat applet wxapp content component text detailed introduction

 {{text}}
 
  add line
  remove line
 

var initData = 'this is first line\nthis is second line'
Page({
 data: {
 text: initData
 },
 extraLine: [],
 add: function(e) {
 this.extraLine.push('other line')
 this.setData({
  text: initData + '\n' + this.extraLine.join('\n')
 })
 },
 remove: function(e) {
 if (this.extraLine.length > 0) {
  this.extraLine.pop()
  this.setData({
  text: initData + '\n' + this.extraLine.join('\n')
  })
 }
 }
})