一、Element-UI之表单

案例：

<template>
  <div>
    
    <el-form class="login-container" :model="loginForm" ref="loginForm" 
    :rules="rules" label-position="left">
      <h3 class="login-title">系统登录h3>
      <el-form-item prop="username">
        <el-input type="text" v-model="loginForm.username" auto-complete="off" placeholder="用户名">el-input>
      el-form-item>
      <el-form-item prop="password">
        <el-input type="password" v-model="loginForm.password" auto-complete="off" placeholder="密码">el-input>
      el-form-item>
      <el-checkbox class="login-remember" v-model="checked">记住密码el-checkbox>
      <el-form-item>
        <el-button class="login-button" type="primary" @click="submitClick('loginForm')">登录el-button>
      el-form-item>
    el-form>
  div>
template>
<script>
export default {
  name: "Login",
  data() {
    return {
      rules: {
          username: [
              { required: true, message: '请输入用户名', trigger: 'blur'}
          ],
          password: [
              { required: true, message: '请输入密码', trigger: 'blur'}
          ]
      },
      loginForm: {
        username: "admin",
        password: "123"
      },
      checked: true
    };
  },
  methods: {
    submitClick(formName) {
        // 表单验证
        this.$refs[formName].validate(valid => {
            if(valid) {
                alert('提交成功！')
            } else {
                console.log("error submit！")
                return false
            }
        })
    }
  }
};
script>
<style lang="stylus" scoped>
    .login-container
        width 350px
        margin 130px auto
        background-clip padding-box
        padding 35px 35px 15px 35px
        border 1px solid #eaeaea
        border-radius 15px
        box-shadow 0 0 25px #cac6c6
        background #fff
        .login-title
            margin 0 auto 40px auto
            text-align center
            color #505458
        .login-remember
            margin 0 0 35px 0
            text-align center
        .login-button
            width 100%
style>

注意事项

1.一定要写在内

2.在使用表单验证时，需要注意：

（1）必须给表单对象绑定一个对象：:model=“loginForm”，而且不能写成：v-model=“loginForm”

（2）所有的子控件的绑定对象必须是表单对象的内部对象，比如：v-model=“loginForm.username”，否则总是验证失败