date(基于element，vue当前时间点击前，后一天)

前一天
 

后一天

mounted () {
  this.valueDate = new Date()
},
methods: {
  beforeDate () {
    this.valueDate = new Date(this.valueDate.setDate(this.valueDate.getDate() - 1))
  },
  afterDate () {
    this.valueDate = new Date(this.valueDate.setDate(this.valueDate.getDate() + 1))
  }
}

data () {
  return {
   
    valueDate: '',
    
  }
},