https://www.cnblogs.com/zr123/p/11461124.html

<el-form :model="dynamicValidateForm" ref="dynamicValidateForm" label-width="100px" class="demo-dynamic">    
 2            <div v-for="(domain, index) in dynamicValidateForm.list">
 3              <el-form-item label="" style="margin-left: -70px"
 
>
 4                <el-select v-model="dynamicValidateForm.list[index].organizer.positionId" @change="Positon($event)">
 5                  <el-option
 6                    v-for="item in positionList"
 7                    :key="item.id"
 8                    :label="item.name"
 9                    :value
 
="item.id"
10                    :disabled="item.disabled"
11                  ></el-option>
12                </el-select>
13              </el-form-item>
14              <el-form-item style="margin-left: -29px"
15                            label="人數"
16                            :prop
 
="'list.' + index + '.organizer.number'"
17                            :rules="{required: true, message: '請輸入人數', trigger: 'blur'}">
18                <el-input v-model="domain.organizer.number" placeholder="人數"></el-input>
19              </el-form-item>
20              <el-form-item label="直屬下級"  v-if="dynamicValidateForm.list[index].organizer.positionId!==1">
21                <el-select v-model="dynamicValidateForm.list[index].organizer.parentId">
22                  <el-option
23                    v-for="item in positionList"
24                    :key="item.id"
25                    :label="item.name"
26                    :value="item.id"
27                  ></el-option>
28                </el-select>
29              </el-form-item>
30              <span style="margin-left: 30px">任務</span>
31              <span  v-for="(itm,i) in dynamicValidateForm.list[index].dutyId" :key="i">
32                   <el-form-item label="" style="width: 100px;" id="ren"
33                                 :prop="'list.' + index + '.dutyId.'+i+'.dutyid'"
34                                 :rules="{required: true, message: '請選擇任務', trigger: 'change'}"
35                   >
36                <el-select v-model="dynamicValidateForm.list[index].dutyId[i].dutyid">
37                  <el-option
38                    v-for="item in dutyList"
39                    :key="item.id"
40                    :label="item.name"
41                    :value="item.id"
42                  ></el-option>
43                </el-select>
44                   </el-form-item>
45              </span>
46              <span class="add" @click="addWork(index)">增加任務+</span>
47            </div>
48            <p class="addLevel" @click="addLevel()">＋增加職位</p>
49          </el-form>