js之选项卡制作实例

大家好，今天给大家书写选项卡实例，话不多说，直接上干货

<!DOCTYPE html>
<html lang="en">
	<head>
		<meta charset="UTF-8">
		<meta name="viewport" content="width=device-width, initial-scale=1.0">
		<title>层次感的瀑布流布局</title>
		<style>
			.tab {
				cursor: pointer;
				padding: 10px 20px;
				display: inline-block;
				background-color: #f0f0f0;
				border: 1px solid #ccc;
				border-bottom: none;
				border-radius: 5px 5px 0 0;
			}

			.tab-content {
				display: none;
				padding: 20px;
				border: 1px solid #ccc;
				border-radius: 0 0 5px 5px;
			}

			.tab-content.show {
				display: block;
			}
		</style>
	</head>
	<body>
		<div class="tab-container">
			<div class="tab" onclick="openTab(event, 'tab1')">Tab 1</div>
			<div class="tab" onclick="openTab(event, 'tab2')">Tab 2</div>
			<div class="tab" onclick="openTab(event, 'tab3')">Tab 3</div>

			<div id="tab1" class="tab-content">
				<h3>Tab 1 Content</h3>
				<p>This is the content of Tab 1.</p>
			</div>
			<div id="tab2" class="tab-content" style="display: none;">
				<h3>Tab 2 Content</h3>
				<p>This is the content of Tab 2.</p>
			</div>
			<div id="tab3" class="tab-content" style="display: none;">
				<h3>Tab 3 Content</h3>
				<p>This is the content of Tab 3.</p>
			</div>
		</div>
		<script>
			function openTab(evt, tabName) {
				// 隐藏所有选项卡内容
				var tabContents = document.getElementsByClassName("tab-content");
				for (var i = 0; i < tabContents.length; i++) {
					tabContents[i].style.display = "none";
				}

				// 移除所有选项卡的 active 类
				var tabs = document.getElementsByClassName("tab");
				for (var i = 0; i < tabs.length; i++) {
					tabs[i].classList.remove("active");
				}

				// 显示所选选项卡内容
				document.getElementById(tabName).style.display = "block";

				// 添加 active 类到当前选项卡
				evt.currentTarget.classList.add("active");
			}
		</script>
	</body>
</html>