el-date-picker设置今天之前的日期不可选,并且日期的范围只能选择7天内的日期

<template>
    <el-form-item label="选择日期:" prop="date">
        <el-date-picker type="daterange" range-separator="至" start-placeholder="开始日期" end-placeholder="结束日期" v-model="form.date" value-format="yyyy-MM-dd" @change="getdate" placement="bottom-end" style="width: 260px" :picker-options="pickerOptions"></el-date-picker> 
    </el-form-item>
</template>

<script>
export default {
  name: "",
  data() {
     pickerOptions: {
        disabledDate(time) {
          var today = new Date();
          today.setHours(0, 0, 0, 0); // 清除时、分、秒和毫秒
          var daysDifference = Math.ceil(
            (time.getTime() - today.getTime()) / (1000 * 3600 * 24)
          );
          return daysDifference < 0 || daysDifference > 7;
        },
      },
  }
}
</script>