element 日期选择器设置默认事件且限制结束大于开始日期

1.使用 element ui日期组件，绑定picker-options配置项

	<template>
		 <el-form-item label="启用起止时间" prop="startDate">
			<el-col :span="11">
			  <el-date-picker type="date" placeholder="选择日期" value-format="timestamp" v-model="form.startDate" style='width:100%' :picker-options="startTime1" ></el-date-picker>
			</el-col>
			<el-col class="line" :span="2" style="text-align:center" >-</el-col>
			<el-col :span="11">
			  <el-date-picker
				v-model="form.endDate"
				type="date"
				style='width:100%'
				value-format="timestamp"
				placeholder="选择日期" :picker-options="endTime1">
			  </el-date-picker>
		  </el-col>
		</el-form-item>
	</template>

	

2.在data中编写配置项逻辑

详细实现如下图代码：

data(){
		return{
		  form{
			startDate:null, // 启用起止时间
			endDate: null, // 启用起止时间
		  },
		  startTime1: {
			disabledDate: time => {
				//如果已知开始日期，就把开始日期之前的日期禁用掉
				if (this.form.endDate) {
					return (
						time.getTime() >new Date(this.form.endDate).getTime()
					);
				} 
			  }
			},
			endTime1: {
			    disabledDate: time => {
				  //如果已知开始日期，就把开始日期之前的日期禁用掉
				  if (this.form.startDate) {
					  return (
						  time.getTime()<new Date(this.form.startDate).getTime()- (1 * 24 * 60 * 60 * 1000)+1
					  );
				  } 
			  }
			},
		}
	}
 mounted(){
    this.getdatatime()
  },
 methods: {
    getdatatime(){//默认显示今天
      this.form.startDate= new Date().getTime();
    },
 }