Vue表单验证 trigger:'blur'OR trigger:'change'区别解析

<el-form-item label="活动区域" prop="region">
    <el-select v-model="ruleForm.region" placeholder="请选择活动区域">
      <el-option label="区域一" value="shanghai"></el-option>
      <el-option label="区域二" value="beijing"></el-option>
    </el-select>
  </el-form-item>
rules: {
   region: [
     { required: true, message: '请选择活动区域', trigger: 'change' }
   ]
}

<el-form-item prop="date1">
  <el-date-picker type="date" placeholder="选择日期" v-model="ruleForm.date1" style="width: 100%;"></el-date-picker>
</el-form-item>
date1: [
  { type: 'date', required: true, message: '请选择日期', trigger: 'change' }
],

<el-form-item label="活动性质" prop="type">
    <el-checkbox-group v-model="ruleForm.type">
      <el-checkbox label="美食/餐厅线上活动" name="type"></el-checkbox>
      <el-checkbox label="地推活动" name="type"></el-checkbox>
      <el-checkbox label="线下主题活动" name="type"></el-checkbox>
      <el-checkbox label="单纯品牌曝光" name="type"></el-checkbox>
    </el-checkbox-group>
</el-form-item>
type: [ { type: 'array', required: true, message: '请至少选择一个活动性质', trigger: 'change' } ],

<el-form-item label="特殊资源" prop="resource">
    <el-radio-group v-model="ruleForm.resource">
      <el-radio label="线上品牌商赞助"></el-radio>
      <el-radio label="线下场地免费"></el-radio>
    </el-radio-group>
  </el-form-item>
resource: [ { required: true, message: '请选择活动资源', trigger: 'change' } ],