load() 方法通過 AJAX 請求從服務器加載數據，並把返回的數據放置到指定的元素中。(load方法需在服務器狀態下生效)
index.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Load</title>
</head>
<body>
<div class="box"></div>
<button id="Load1">Load1</button>
<button id="Load2">Load2</button>
</body>
</html>
<script src="https://cdn.bootcss.com/jquery/3.3.1/jquery.min.js"></script>
<script>
// $('.box').load('load1.html');
$("#Load1").on('click',function(){
$('.box').load('load1.html');
})
$("#Load2").on('click',function(){
//$('.box').load('load2.html');
$('.box').load('load2.html',"#select");
})
</script>
load1.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
</head>
<body>
<h1>Hello Load</h1>
</body>
</html>
load2.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
</head>
<body>
<!-- <h1>Hello Load2</h1> -->
<div id="select">
<h1>SELECT_LOAD</h1>
</div>
</body>
</html>