vue对象内添加数据

数组

this.$set(对象, key, 数组)

 高级

abc: [
  {bbb: 111,ccc:"one"},
  {ddd: 222,eee:"two"},
  
]

      for (var i = 0; i < this.abc.length; i++) {
        
        
      
        this.$set(this.abc[i],'hidden',true)
      }
    

 var a ={ hidden:true }
        Object.assign(this.abc[i], b)