elemnt-ui## 标题 ##

<el-form-item label-width="120px" label="配送时间：" prop="sendTime">
               <el-date-picker 
               v-model="mainForm.sendTime"
                placeholder="选择日期时间"  
               type="datetime" 
               :editable= false 
               prefix-icon= "null" 
              :picker-options="pickerDisabled"
              ></el-date-picker>
 </el-form-item>
data(){  
 props:{
        mData: {
            type: Object,
            default() {
                 return {
                  
                }
            }
        },
    }, 
    return:{
      mainForm:{
        sendTime:null,    
        },    
        updata:null,   //前边拿到的创建时间    
        pickerDisabled:  {  //验证时间范围
        disabledDate:(time)=>{
             let beginVal = this.updata;
                    if( beginVal) { 
                       return time.getTime() < beginVal;
                        }
         },   } }

methods:{
     openDialog(data){    //弹窗
            this.isShow   = true;
            this.infoData     = data;
            this.updata =  data.crtDt;//拿到上个页面的时间
        }, 
      }