vue.$watch

export default {
  name: 'vessel',
  data () {
    return {
      msg: '容器',
      vesselArr:this.$store.state.vesselArr
    }
  },
  created (){
    this.$watch('vesselArr',function(p){
      $(ifmbody).find('.addText').each(function(i){
          $(this).html(p[i].inner)
      })
    },{deep:true})
  }
}
</script>

var app =new Vue({
    data:{
        msg:'hello world!'
    }
})
app.$watch('msg',function(newMsg,oldMsg){},{deep:true})