vue3 + router + ele-plus

猜猜看为什么使用组件库！

他呀的！查看密码要自己写，验证信息也要自己写，所以说会用组件库会轻松一点，，，

代码如下

<template>
  <div class="main">
    <div class="steps">
      <ol>
        <li
            v-for="(step, index) in steps"
            :key="index"
            :class="{ active: currentIndex === index, done: currentIndex > index }"
        >
          {{ step }}
        </li>
      </ol>
    </div>
    <el-form :model="form" :rules="rules" class="step-content">
      <div v-if="currentIndex === 0">
        <h3>请填写您需要找回密码的账号</h3>
        <el-form-item class="step-content-button" label="账号：" prop="username">
          <el-input  v-model="form.username" type="text" required/>
        </el-form-item>

      </div>
      <div v-else-if="currentIndex === 1">
        <h3>请填写您的完整邮箱</h3>
        <el-form-item class="step-content-button" label="邮箱：" prop="email">
          <el-input v-model="form.email" type="email" required/>
        </el-form-item>

      </div>
      <div v-else-if="currentIndex === 2">
        <h3>请输入您收到的验证码进行校验</h3>
        <el-form-item class="step-content-button" label="验证码：" prop="code">
          <el-row :gutter="10">
            <el-col :span="17">
              <el-input v-model="form.code"></el-input>
            </el-col>
            <el-col :span="5">
              <el-button type="primary">发送验证码</el-button>
            </el-col>
          </el-row>
        </el-form-item>
      </div>
      <div v-else-if="currentIndex === 3">
        <h3>请输入您的新密码进行重置。</h3>
        <el-form-item class="step-content-button" label="新密码：" prop="password">
          <el-input v-model="form.password" type="password" required placeholder="新密码" show-password/>
        </el-form-item>
        <el-form-item label="确认新密码：" prop="password_repeat">
          <el-input v-model="form.password_repeat" type="password" required placeholder="确认新密码" show-password/>
        </el-form-item>

      </div>
    </el-form>
    <div class="step-button">
      <el-button @click="prevStep" :disabled="currentIndex === 0">上一步</el-button>
      <el-button v-if="currentIndex === 0" type="primary" @click="nextStep">下一步</el-button>
      <el-button v-if="currentIndex === 1" type="primary" @click="nextStep">下一步</el-button>
      <el-button v-if="currentIndex === 2" type="primary" @click="nextStep">下一步</el-button>
      <el-button v-if="currentIndex === 3" type="primary" @click="nextStep">修改密码</el-button>
    </div>
  </div>
</template>

<script setup>
import {reactive, ref} from 'vue';

//可直接使用ele-plus中的步骤条代替！！！！！！
const steps = ['找回账号', '身份校验', '验证码校验', '密码重置'];
const currentIndex = ref(0);
// 定义一个 'nextStep' 函数，用于切换到下一个步骤
const nextStep = () => {
  if (currentIndex.value < steps.length - 1) {
    currentIndex.value++;
  }
};
// 定义一个 'prevStep' 函数，用于切换到上一个步骤
const prevStep = () => {
  if (currentIndex.value > 0) {
    currentIndex.value--;
  }
};


const form = reactive({
  username: '',
  password: '',
  password_repeat: '',
  email: '',
  code: ''
})


const validateUsername = (rule, value, callback) => {
  if (value === '') {
    callback(new Error('请输入用户名'))
  } else if(!/^[a-zA-Z0-9_]+$/.test(value)){
    callback(new Error('用户名由下划线，数字，字母组成'))
  } else {
    callback()
  }
}

const validatePassword = (rule, value, callback) => {
  if (value === '') {
    callback(new Error('请再次输入密码'))
  } else if (value !== form.password) {
    callback(new Error("两次输入的密码不一致"))
  } else {
    callback()
  }
}

const rules = {
  username: [
    { validator: validateUsername, trigger: ['blur', 'change'] },
    { min: 12, max: 16, message: '用户名的长度必须在12-16个字符之间', trigger: ['blur', 'change'] },
  ],
  password: [
    { message: '请输入密码', trigger: 'blur' },
    { min: 12,  message: '密码的长度最低为12字符', trigger: ['blur', 'change'] }
  ],
  password_repeat: [
    { validator: validatePassword, trigger: ['blur', 'change'] },
  ],
  email: [
    { message: '请输入邮件地址', trigger: 'blur' },
    {type: 'email', message: '请输入合法的电子邮件地址', trigger: ['blur', 'change']}
  ],
  code: [
    { message: '请输入获取的验证码', trigger: 'blur' },
  ]
}
</script>

<style scoped>
*{
  padding: 0;
  margin: 0;
}
/**/
.main{
  display: flex;
  flex-direction: column;
  align-items: center;
}

.step-content{
  margin-top: 10vh; /* 与步骤条的垂直距离 */
  text-align: center; /* 水平居中文本 */
}

.step-content-button{
  margin-top: 5vh; /* 与步骤条的垂直距离 */
}

.step-button{
  margin-top: 2vh;
}

/* step步骤条核心样式 */
.steps ol {
  --normal-color: #fff;  /* css变量，默认颜色  */
  --active-color: #428aea;  /* css变量，激活颜色  */

  display: flex;
  width: 70vw;
  margin-top: 15%; /* 调整步骤条垂直位置 */
  justify-content: space-between;
  counter-reset: order;  /* 定义CSS计数器 */
}

  /* 步骤项 */
.steps ol > li {
  flex: auto;
  display: inline-flex;
  align-items: center;
  counter-increment: order;
  color: var(--active-color);
}

/* 去掉右边多余 */
.steps ol > li:last-child {flex: none;}

  /* 步骤编号（带圈数字） */
.steps ol> li::before {
  content: counter(order);
  flex-shrink: 0;
  width: 1.4em;
  line-height: 1.4em;
  margin-right: .5em;
  text-align: center;
  border-radius: 50%;
  border: 1px solid;
}

  /* 步骤项引导线 */
.steps ol> li:not(:last-child)::after {
  content: '';
  flex: 1;
  margin: 0 1em;
  border-bottom: 1px solid;
  opacity: .6;
}
  /* 步骤状态 */
.steps ol> .active {color: var(--active-color);}
.steps ol> .active::before {
  color: #fff;
  background: var(--active-color);
  border-color: var(--active-color);
}
.steps ol> .active::after,
.steps ol> .active ~ li {color: var(--normal-color);}
</style>

下个版本预告，

在点击下一步时，步骤条的数字会变成一个绿色的勾，添加微动画，添加更多的注释