这是显示当前时间，每次点开弹框都是当前的时间实现效果很简单

//html
<el-form-item
   label="创建时间"
   :label-width="formLabelWidth"
>
  <el-date-picker
    v-model="addForm.createDate"
    style="width:100%"
     type="datetime"
     placeholder="选择日期"
   />
</el-form-item>
//data里的数据
data(){
	addForm:{
		createDate:new Date()
	}
}
//点击关闭的弹框
closeDialog() {
  this.addForm = {}
  this.addForm.createDate = new Date()
},