前端vue+elementUI新增页面的一些注意点

      <el-form-item prop="collegeId"  label="所属院">
        <el-select v-model="dataForm.collegeId" placeholder="请选择所属院">
          <el-option v-for="college in collegeList" :key="college.id" :label="college.collegeName" :value="college.id"></el-option>
        </el-select>
      </el-form-item>

绑定数据
export default {
  data () {
    return {
      visible: false,
      collegeList: [],
      dataForm: {
        id: '',
        departmentName: '',
        collegeId: '',
        sort: '',
        addTime: ''
      }
    }
  },

验证必填 
computed: {
    dataRule () {
      return {
        id: [
          { required: true, message: this.$t('validate.required'), trigger: 'blur' }
        ],
        departmentName: [
          { required: true, message: this.$t('validate.required'), trigger: 'blur' }
        ],
        collegeId: [
          { required: true, message: this.$t('validate.required'), trigger: 'change' }
        ],
        addTime: [
          { required: true, message: this.$t('validate.required'), trigger: 'blur' }
        ]
      }
    }
  },

初始化：
 methods: {
    init () {
      this.visible = true
      this.dataForm.collegeId = ''
      this.$nextTick(() => {
        this.$refs['dataForm'].resetFields()
        this.getCollgeList()
        if (this.dataForm.id) {
          this.getInfo()
        }
      })
    },

对应的方法：
    getCollgeList () {
      return this.$http.get('/test/college/list').then(({ data: res }) => {
        if (res.code !== 0) {
          return this.$message.error(res.msg)
        }
        this.collegeList = res.data
      }).catch(() => {})
    },