最新在做一套OA系统，UI使用elementUI做的，有个需求，在做员工生日提醒的时候，录入个人信息，以及个人更新资料的时候，生日需要保持和身份证上的生日保持一致。

思路：确认密码验证的思路来验证就可以了。

具体代码：

<template>
  <div class="hello">
      <el-form :model="ruleForm" :rules="rules" ref="ruleForm" label-width="100px" class="demo-ruleForm">
          <el-form-item label="密码" prop="password">
            <el-input v-model="ruleForm.password"></el-input>
          </el-form-item>
          <el-form-item label="重复密码" prop="repassword">
            <el-input v-model="ruleForm.repassword"></el-input>
          </el-form-item>
          <el-form-item label="身份证" prop="idcard">
            <el-input v-model="ruleForm.idcard"></el-input>
          </el-form-item>
          <el-form-item label="生日" prop="birthday">
            <el-input v-model="ruleForm.birthday"></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>
  export default {
    data() {
        var repasswordValidator = (rule, value, callback) => {
        if (value === '') {
          callback(new Error('请再次输入密码'));
        } else if (value !== this.ruleForm.password) {
          callback(new Error('两次输入密码不一致!'));
        } else {
          callback();
        }
      };
      var birthdayValidator  = (rule, value, callback) => {
        if (value === '') {
          callback(new Error('请再次输入生日'));
        } else if (this.ruleForm.idcard.indexOf(value) == -1) {
          callback(new Error('生日和身份证生日不一致!'));
        } else {
          callback();
        }
      };
      return {
        ruleForm: {
          password: '123',
          repassword: '123',
          idcard: '202541199309010875',
          birthday: '',
        },
        rules: {
            password: [
            { required: true, message: '请输入密码', trigger: 'blur' },
          ],
          repassword: [
            { required: true, message: '请输入确认密码', trigger: 'blur' },
            { validator: repasswordValidator,trigger: 'blur' },
          ],
          idcard: [
            { required: true, message: '请输入身份证', trigger: 'change' }
          ],
          birthday: [
            { required: true, message: '请输入生日', trigger: 'blur' },
            { validator: birthdayValidator,trigger: 'blur' },
          ]
        }
      };
    },
    methods: {
      submitForm(formName) {
        this.$refs[formName].validate((valid) => {
          if (valid) {
            alert('submit!');
          } else {
            console.log('error submit!!');
            return false;
          }
        });
      },
      resetForm(formName) {
        this.$refs[formName].resetFields();
      }
    }
  }
</script>