element默认展示日期延后32天

默认展示日期延后32天
例如：7.1;7.1----7.1----7.2;7.1------7.31；;8.1----8.1;8.1----8.2
假如今天是：9.2显示时间：7.1–7.31 9.3显示时间是：8.1–8.1；一直到8.1–8.31；
代码展示：

    <el-form-item label="下单时间" prop="dataFrom">
       <el-date-picker style="width: 220px" v-model="listQueryDate" type="daterange" range-separator="至"
          start-placeholder="开始日期" end-placeholder="结束日期" size="mini" value-format="yyyy-MM-dd" :clearable="false"
          :picker-options="pickerOptions" @change="timeScope = undefined" />
      </el-form-item>
      <el-form-item label="时间范围">
        <el-select v-model="timeScope" style="width: 165px" placeholder="请选择时间范围" @change="selTimeScope">
          <el-option v-for="(item, i) in placeTimeScopeList" :key="item" :label="item" :value="i" />
        </el-select>
      </el-form-item>
    </el-form-item>

data() {
    return {
    	 timeScope: '',
		 placeTimeScopeList: ["昨天", "当天", "7天", "一个月"],
		 listQueryOrder: {
	        dataFrom: undefined,
	        dataTo: undefined,
      	},
      	pickerOptions: {
	       	disabledDate(time) {
	          return time.getTime() > Date.now() - 8.64e6;
	        },
      	},
	}
}

setData(date, type, val) {
      if (type === 1) {
        date.setDate(date.getDate() + val);
      } else if (type === 2) {
        date.setMonth(date.getMonth() + val);
      } else if (type === 3) {
        date.setFullYear(date.getFullYear() + val);
      }
    },

 selTimeScope() {
      let nowDate = new Date().toLocaleDateString();
      const date = new Date(nowDate);
      switch (this.timeScope) {
        case 0:
          this.setData(date, 1, -1);
          nowDate = date.toLocaleDateString();
          break;
        case 2:
          this.setData(date, 1, -7);
          break;
        case 3:
          this.setData(date, 2, -1);
          break;
        default:
          break;
      }
      this.listQueryDate = [date.toLocaleDateString(), nowDate];
      this.getList();
    },

// 默认展示日期延后32天
    settiemorder(){
      let nowDate = new Date().getTime();
      let arr =[3,0,3,2,3,2,3,3,2,3,2,3]
      nowDate = nowDate - 30*24*60*60*1000;
      let endtime = new Date(nowDate);
      endtime = new Date(nowDate - arr[endtime.getMonth()]*24*60*60*1000)
      let startTime = new Date(endtime);
      startTime.setDate(1)//此处是开始时间7.1；8.1；9.1；
      this.listQueryDate = [startTime.toLocaleDateString(), endtime.toLocaleDateString()];//此处是开始时间和结束时间
      this.getList();
    },

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