<el-select v-model="value" placeholder="请选择" @change="change()">
   <el-option v-for="item in options" :key="item.value" :label="item.label" :value="item.value"></el-option>
</el-select>

 change(){
   this.$forceUpdate()
 },

<el-form-item prop="czfaIds" label="处置方案">
 <el-select v-model="form.czfaIds" multiple style="width:80%;" placeholder="请选择" clearable :disabled="showControl">
   <el-option
       v-for="item in czfas" 
       :key="item.value"
       :label="item.wsdFamc" 
       :value="item.id" 
    />
  </el-select>
</el-form-item>

  // 编辑
  queryEditRow(index, row) {
   this.titleInfo = '编辑'
   this.dialogVisible = true
   this.form = Object.assign({}, row)

   // 将字符串转换成数组，绑定到select控件的v-model属性上
   this.form.czfaIds = row.czfaIds.split(',')

   this.showbtn = true
   this.showControl = false
  },

  // 编辑
  queryEditRow(index, row) {
   this.titleInfo = '编辑'
   this.dialogVisible = true
   this.form = Object.assign({}, row)

   // 将字符串转换成数组，此时是字符串数组
   var arrStringCzfaIds = row.czfaIds.split(',')
   // 将字符串数组的每一项转换成Number，生成一个新的数组
   var arrIntCzfaIds = []
   for (var arrInt in arrStringCzfaIds) {
    arrIntCzfaIds.push(parseInt(arrStringCzfaIds[arrInt]))
   }
   // 将新的Number数组，绑定到select空间的v-model上
   this.form.czfaIds = arrIntCzfaIds

   this.showbtn = true
   this.showControl = false
  },