jQuery中的jQuery.html()和jQuery.append()方法有什么区别？
jQuery.html()方法
该html()方法获取第一个匹配元素的html内容(innerHTML)。此属性在XML文档上不可用。
示例
您可以尝试运行以下代码，以了解如何在jQuery中使用jQuery.html()方法：
<html>
<head>
<title>jQuery html() method</title>
<script src = "https://cdn.staticfile.org/jquery/3.2.1/jquery.min.js"></script>
<script>
$(document).ready(function() {
$("div").click(function () {
var content = $(this).html();
$("#result").html(content);
});
});
</script>
<style>
div{
margin:10px;
padding:12px;
border:2px solid #666;
width:100px;
}
</style>
</head>
<body>
<p>Click on any square below to see the result:</p>
<p id = "result"> THIS IS TEST </p>
<div class = "div" style = "background-color:blue;">
<h1>This is square one </h1>
</div>
<div class = "div" style = "background-color:green;">
<h1>This is square two </h1>
</div>
<div class = "div" style = "background-color:red;">
<h1>This is square three </h1>
</div>
</body>
</html>jQuery.append()方法
append(content)方法将内容附加到每个匹配元素的内部。
示例
您可以尝试运行以下代码来学习如何使用jQuery.append()方法：
<html>
<head>
<title>jQuery append() method</title>
<script src = "https://cdn.staticfile.org/jquery/3.2.1/jquery.min.js"></script>
<script>
$(document).ready(function() {
$("div").click(function () {
$(this).append('<div class = "div"></div>' );
});
});
</script>
<style>
.div {
margin:10px;
padding:12px;
border:2px solid #666;
width:60px;
}
</style>
</head>
<body>
<p>Click on any square below to see the result:</p>
<div class = "div" style = "background-color:blue;"></div>
<div class = "div" style = "background-color:green;"></div>
<div class = "div" style = "background-color:red;"></div>
</body>
</html>