element-ui 动态 限制选择日期范围

根据后端返回字段要求，如何动态限制日期范围

<el-form-item label="保险周期">
   <el-date-picker
    v-model="abc"
    type="daterange"
    range-separator="至"
    start-placeholder="开始日期"
    end-placeholder="结束日期"
    @change="changeTestDate"
    :picker-options="pickerOptions"
    placeholder="请选择时间"
    style="width: 90%"
     >
    </el-date-picker>
</el-form-item>

export default {
    data(){
        return{
            abc:'',
            minDate: "",
			maxDate: "",
            pickerOptions:{
                // 限制日期
                disabledDate:time=> {
                    let minDate = new Date(this.falseForm.SHENGXIAOSHIJIAN);
                    let maxDate = new Date(this.falseForm.SHIXIAO);
                    return  time.getTime() < minDate || time.getTime() > maxDate;
                }
            },
        },
    methods:{
        //限制选择日期
        changeTestDate (val) {
            if( val !== null){
                //分别取到开始日期和结束日期
                this.minDate = this.form.abc[0];
                this.maxDate = this.form.abc[1];
            }
        },
    }
}

pickerOptions: {
      disabledDate(time) {
        return time.getTime() < Date.now() - 8.64e7;  //今天和之后
      }
},
pickerOptions: {
      disabledDate(time) {
        return time.getTime() > Date.now() - 8.64e6;  //今天和之前
      }
    },
  }