HTML+CSS+Javascript 模拟验证码输入HTML+CSS+Javascript 模拟验证码输入 HTML+

一、页面展示：
在这里插入图片描述
二、效果图(密码：654321)

三、代码：
html文件

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>模拟验证码输入01</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="code">
    <section class="show">
      <p class="tit">请输入6位验证码</p>
      <p class="content"></p>
    </section>
    <section class="input">
      <ul class="keyboard">
        <li class="item">1</li>
        <li class="item">2</li>
        <li class="item">3</li>
        <li class="item">4</li>
        <li class="item">5</li>
        <li class="item">6</li>
        <li class="item">7</li>
        <li class="item">8</li>
        <li class="item">9</li>
        <li class="item">0</li>
      </ul>
    </section>
  </main>
  <p class="tip">霹雳一闪&nbsp;六连⚡⚡⚡⚡⚡⚡</p>
</body>
<script src="index.js"></script>
</html>

index.css

  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
li {
  list-style: none;
}
body, html {
  height: 100%;
}
body {
  font-family: PingFang SC,Microsoft YaHei,Helvetica Neue,Helvetica,Hiragino Sans GB,Arial,sans-serif;
  background: #000 url('flash.gif') center 80px no-repeat;
  background-size: 400px;
}
.code {
  position: relative;
  z-index: 10;
  margin: 60px auto 0;
  width: 400px;
  border: 1px solid #666;
  border-radius: 10px;
  background-color: #fff;
  overflow: hidden;
}
.tip {
  position: absolute;
  z-index: 1;
  top: 320px;
  font-size: 20px;
  color: #fff;
  text-align: center;
  width: 100%;
}
.show {
  padding-top: 20px;
}
.show>.tit {
  text-align: center;
  font-size: 20px;
  font-weight: bold;
  color: #333;
}
.show>.list {
  margin: 20px auto 0;
  display: flex;
  justify-content: center;
}
.show>.content {
  margin: 20px auto 0;
  text-align: center;
  color: skyblue;
  font-size: 30px;
  letter-spacing: 5px;
  height: 40px;
  width: 150px;
  border-bottom: 1px solid #333;
}
.input {
  margin-top: 60px;
  padding: 10px 5px;
  background-color: #eee;
  border-top: 1px solid #333;
}
.input>.tit {
  font-size: 12px;
  color: #333;
  text-align: center;
}
.keyboard {
  display: flex;
  justify-content: space-around;
  flex-wrap: wrap;
}
.keyboard>.item {
  cursor: pointer;
  margin-top: 10px;
  width: 120px;
  height: 30px;
  line-height: 30px;
  background-color: #fff;
  border: 1px solid #666;
  border-radius: 5px;
  text-align: center;
  color: #333;
  font-size: 16px;
  font-weight: bold;
}

index.js

```var main = document.querySelector('.code')
var content = document.querySelector('.show>.content')
var listItems = document.querySelectorAll('.list>.item')
var keyItems = document.querySelectorAll('.keyboard>.item')
var keyItemsLen = keyItems.length
var codeIdx = 0; // 当前输入的是第几位验证

for (let idx = 0; idx < keyItemsLen; idx++) {
  keyItems[idx].addEventListener('click', function() {
    if (codeIdx > 5) { // 输入超过6位时,停止执行
      return
    }
    // 对应位置写入数字
    content.innerText += this.innerText.toString()
    codeIdx++

    if (content.innerText === '654321') {
      main.style.display = 'none';
    }
  })
}