element-ui table循环select 取值（多个）

<div class="listContainer" v-if="ruleForm.monthRange">
              <div class="itemContainer" v-for="(item,index) in listNum" :key="index">
                <div class="item">
                  排班日期：
                  <!-- {{ruleForm.monthRange[0]+‘-‘+((index>=9?(index+1):(‘0‘+(index+1))))}} -->
                  {{item.workDate}}
                </div>
                <div class="item">
                  值班人员：
                  <el-select
                    v-model="item.name"
                    placeholder="请选择值班人员"
                    size="medium"
                    clearable
                    @change="personValueSelect(index,$event)"
                    value-key="id"
                  >
                    <el-option
                      v-for="item in personOptions"
                      :key="item.id"
                      :label="item.name"
                      :value="item"
                    ></el-option>
                  </el-select>
                </div>
                <div class="item">
                  班种类型：
                  <el-select
                    v-model="item.workTypeName"
                    placeholder="请选择班种"
                    clearable
                    @change="workTypeValueSelect(index,$event)"
                    value-key="value"
                  >
                    <el-option
                      v-for="item in workTypeOptions"
                      :key="item.value"
                      :label="item.text"
                      :value="item"
                      size="medium"
                    ></el-option>
                  </el-select>
                </div>
                <div class="item">
                  <el-button type="danger" plain @click="delItem(index)">重置</el-button>
                </div>
              </div>
            </div>

data() {
    return {
      isShowAddDialog: false,
      ruleForm: {
        monthRange: ""
      },
      rules: {
        monthRange: [
          { required: true, message: "请选择月份", trigger: "change" }
        ]
      },
      editOrAdd: "",
      //--------------------
      emergrncyId: "", //id
      listNum: [],
      disabledFlag: false,
      monthDayTotal: [31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31],
      personOptions: [], //值班人员
      workTypeOptions: [] //班种
    };
  },

//月份选择
    changeMonth(val) {
      if (this.ruleForm.monthRange && this.ruleForm.monthRange.length > 0) {
        let year = parseInt(this.ruleForm.monthRange[0].split("-")[0]);
        let month = parseInt(this.ruleForm.monthRange[0].split("-")[1]);
        // this.listNum = this.monthDayTotal[month - 1];
        this.listNum = [];
        this.listNum.data = this.monthDayTotal[month - 1];
        if (
          ((year % 4 == 0 && year % 100 != 0) || year % 400 == 0) &&
          month == 2
        ) {
          // this.listNum = this.listNum + 1;
          this.listNum.data = this.listNum + 1;
        }
        //循环出每一行项的值
        for (let i = 0; i < this.listNum.data; i++) {
          this.listNum.push({
            personId: "",
            name: "",
            workType: "",
            workTypeName: "",
            workDate:
              this.ruleForm.monthRange[0] +
              "-" +
              (i >= 9 ? i + 1 : "0" + (i + 1))
          });
        }
        // console.log("this.listNum", this.listNum);
      }
    },

personValueSelect(index, v) {
      // console.log(v, 1);
      this.listNum[index].personId = v.id;
      this.listNum[index].name = v.name;
    },
    workTypeValueSelect(index, v) {
      // console.log(v, 2);
      this.listNum[index].workType = v.value;
      this.listNum[index].workTypeName = v.text;
    },

delItem(index) {
      //重置当期行
      // console.log("重置当前行", index);
      this.listNum[index].name = "";
      this.listNum[index].personId = "";
      this.listNum[index].workTypeName = "";
      this.listNum[index].workType = "";
    },