<template>
  <div>
    <el-form :model="ruleForm" :rules="rules" ref="ruleForm" label-width="100px" class="demo-ruleForm">
      <el-form-item label="活动名称" prop="name">
        <el-input v-model="ruleForm.name"></el-input>
      </el-form-item>
      <el-form-item label="电话" prop="phone">
        <el-input v-model.number="ruleForm.phone" ></el-input>
      </el-form-item>
      <el-form-item>
        <el-button type="primary" @click="submitForm('ruleForm')">立即创建</el-button>
        <el-button @click="resetForm('ruleForm')">重置</el-button>
      </el-form-item>
    </el-form>

  </div>

</template>
<script>
  //这里要俺需要引入，我不是一个对象
  import {isvalidPhone} from '../../../config/validate'
  //定义一个全局的变量，谁用谁知道
  var validPhone=(rule, value,callback)=>{
      if (!value){
          callback(new Error('请输入电话号码'))
      }else  if (!isvalidPhone(value)){
        callback(new Error('请输入正确的11位手机号码'))
      }else {
          callback()
      }
  }

  export default {
    data() {
      return {
        ruleForm: {
          name: '',
          phone:''
        },
        rules: {
          name: [
            { required: true, message: '请输入活动名称', trigger: 'blur' },
            { min: 3, max: 5, message: '长度在 3 到 5 个字符', trigger: 'blur' }
          ],

          phone: [
            { required: true, trigger: 'blur', validator: validPhone }//这里需要用到全局变量
          ]
        }
      };
    },
    methods: {
      submitForm(formName) {
        this.$refs[formName].validate((valid) => {
          if (valid) {
            alert('submit!');//这里就是符合规则，然后去调对应的接口
          } else {
            console.log('error submit!!');
            return false;
          }
        });
      },
      resetForm(formName) {
        this.$refs[formName].resetFields();
      }
    }
  }

</script>
========================================================================================================================
validate.js文件的源码：

// 手机号验证
export function isvalidPhone(str) {
  const reg = /^1[3|4|5|7|8][0-9]\d{8}$/
  return reg.test(str)
}

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