vue動態迴圈出的多個select出現過的變為disabled

 1 <template>
 2     <div class="artcle">
 4       <el-form
 5         label-width="100px"
 6         :model="testForm">
 7         <el-form-item
 8           v-for="(vtem, index) in testForm.version"
 9           :key="index"
10           label="命令版本">
11           <el-select
12             @change="comChange"
13             v-model="vtem.ver">
14             <el-option
15               v-for="item in versionList"
16               :key="item.id"
17               :value="item.id"
18               :disabled="item.id == vtem.ver || selectedArr.includes(item.id)"
19               :label="item.name">
20             </el-option>
21           </el-select>
22           <el-button
23             icon="el-icon-circle-plus-outline"
24             size="small"
25             @click="add(index)"
26             circle></el-button>
27           <el-button
28             icon="el-icon-remove-outline"
29             size="small"
30             @click="remove(index)"
31             :disabled="index === 0"
32             circle></el-button>
33         </el-form-item>
34         <el-form-item
35           label="測試輸入框">
36           <el-input
37             v-model="testForm.input"></el-input>
38         </el-form-item>
39       </el-form>
40     </div>
41 </template>

 1 export default {
 2   name: 'home',
 3   data () {
 4     return {
 5       selectedArr: [], // 作為判斷是否重覆的數組
 6       testForm: {
 7         version: [
 8           { ver: '' }
 9         ],
10         input: ''
11       },
12       versionList: [
13         { id: 1, name: '1.1' },
14         { id: 2, name: '1.2' },
15         { id: 3, name: '1.3' }
16       ]
17     }
18   },
19   methods: {
20     add () {
21       let version = this.testForm.version
22       if (version.length < this.versionList.length) {
23         this.testForm.version.push({
24           ver: ''
25         })
26       } else {
27         alert('命令版本就三條')
28       }
29     },
30     remove (index) {
31       this.selectedArr.splice(index, 1)
32       this.testForm.version.splice(index, 1)
33     },
34   // 下拉改變時 
35     comChange (index) {
36       this.selectedArr = []
37       for (let item of this.testForm.version) {
38         if (item.ver) {
39           this.selectedArr.push(item.ver)
40         }
41       }
42     }
43   }
44 }