HTML 汉字检测器：在线检测文本中的汉字数量
<!DOCTYPE html>
<html>
<head>
<title>汉字检测器</title>
<meta charset="UTF-8">
<style>
/* 居中显示 */
body {
display: flex;
flex-direction: column;
align-items: center;
justify-content: center;
height: 100vh;
margin: 0;
background-color: #f7f7f7;
}
<pre><code> h1 {
font-size: 36px;
font-weight: bold;
margin-bottom: 20px;
}
.input-box {
display: flex;
flex-direction: column;
align-items: center;
justify-content: center;
width: 500px;
height: 300px;
padding: 20px;
background-color: #fff;
border-radius: 10px;
box-shadow: 0 0 10px rgba(0, 0, 0, 0.2);
}
.textarea {
width: 100%;
height: 200px;
padding: 10px;
font-size: 18px;
border: 1px solid #ccc;
border-radius: 5px;
resize: none;
margin-bottom: 20px;
}
.btn-wrap {
display: flex;
align-items: center;
justify-content: center;
}
.btn {
padding: 10px 20px;
border: none;
border-radius: 5px;
background-color: #007bff;
color: #fff;
font-size: 18px;
cursor: pointer;
margin: 0 10px;
}
.clear-btn {
background-color: #dc3545;
}
</style>
</code></pre>
</head>
<body>
<h1>汉字检测器</h1>
<div class='input-box'>
<textarea class='textarea' placeholder='请输入需要检测的汉字'></textarea>
<div class='btn-wrap'>
<button class='btn check-btn'>检测</button>
<button class='btn clear-btn'>清空</button>
</div>
</div>
<script>
const textarea = document.querySelector('.textarea');
const checkBtn = document.querySelector('.check-btn');
const clearBtn = document.querySelector('.clear-btn');
<pre><code> checkBtn.addEventListener('click', () => {
const content = textarea.value.trim();
const reg = /[一-龥]/g;
const result = (content.match(reg) || []).length;
alert('输入的文本中共包含 ' + result + ' 个汉字');
});
clearBtn.addEventListener('click', () => {
textarea.value = '';
});
</script>
</code></pre>
</body>
</html>
原文地址: https://www.cveoy.top/t/topic/l5nV 著作权归作者所有。请勿转载和采集!