<el-col :span="12">
            <el-form-item label="角色">
              <el-select v-model="form.roleIds" multiple placeholder="請選擇" @change="handleChange">
                <el-option v-for="item in roleOptions" :key="item.roleId" :label="item.roleName" :value="item.roleId"></el-option>
              </el-select>
            </el-form-item>
          </el-col>

handleUpdate(row) {
      this.reset()
      const userId = row.id || this.ids
      getUser(userId).then((response) => {
        this.form = response.data
        this.roleOptions = response.roleOptions
        this.$set(this.form, 'roleIds', response.roleIds)  #實時動態刷新
        // this.form.roleIds = response.roleIds    #非實時
        this.open = true
        this.title = '修改用戶'
        this.form.password = ''
      })
    },