vue之组件内监控$store中定义变量的变化详解

computed: {
  listenstage() {
    return this.$store.state.iShaveMsg;
  }
 },

watch:{
  listenstage: function(ov,nv){
   console.log('watch start……');
   if(this.$store.state.iShaveMsg){
      //业务处理
    }
   }
   console.log('watch stop……');
  }
 },