<!DOCTYPE html>
<html lang="zh-CN">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>jQuery下拉菜单选择器</title>
<style>
body {
font-family: Arial, sans-serif;
max-width: 800px;
margin: 0 auto;
padding: 20px;
}
.dropdown-container {
margin: 30px 0;
}
.dropdown {
position: relative;
display: inline-block;
}
.dropdown-btn {
background-color: #4CAF50;
color: white;
padding: 12px;
font-size: 16px;
border: none;
cursor: pointer;
min-width: 200px;
text-align: left;
border-radius: 4px;
}
.dropdown-content {
display: none;
position: absolute;
background-color: #f9f9f9;
min-width: 200px;
box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
z-index: 1;
border-radius: 4px;
}
.dropdown-content a {
color: black;
padding: 12px 16px;
text-decoration: none;
display: block;
}
.dropdown-content a:hover {
background-color: #f1f1f1;
}
.dropdown:hover .dropdown-content {
display: block;
}
.dropdown:hover .dropdown-btn {
background-color: #3e8e41;
}
.selected-item {
margin-top: 20px;
padding: 10px;
background-color: #f0f0f0;
border-radius: 4px;
}
.footer {
margin-top: 50px;
text-align: center;
color: #666;
}
</style>
</head>
<body>
<h1>jQuery下拉菜单选择器</h1>
<div class="dropdown-container">
<div class="dropdown">
<button class="dropdown-btn">选择一个选项</button>
<div class="dropdown-content">
<a href="#" data-value="option1">选项一</a>
<a href="#" data-value="option2">选项二</a>
<a href="#" data-value="option3">选项三</a>
<a href="#" data-value="option4">选项四</a>
</div>
</div>
<div class="selected-item">
当前选择: <span id="selected-value">未选择</span>
</div>
</div>
<div class="footer">
<p>技术支持:www.1sf.homes</p>
<p>© 2023 下拉菜单选择器</p>
</div>
<script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
<script>
$(document).ready(function() {
// 点击下拉选项
$('.dropdown-content a').click(function(e) {
e.preventDefault();
var selectedText = $(this).text();
var selectedValue = $(this).data('value');
// 更新按钮文本
$('.dropdown-btn').text(selectedText);
// 显示选择的值
$('#selected-value').text(selectedText + " (值: " + selectedValue + ")");
// 这里可以添加其他处理逻辑
console.log("选择了: " + selectedText + ", 值: " + selectedValue);
});
// 点击其他地方关闭下拉菜单
$(document).click(function(e) {
if (!$(e.target).closest('.dropdown').length) {
$('.dropdown-content').hide();
}
});
});
</script>
</body>
</html>