<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <title>JQuery Demo</title>
    <script src="scripts/jquery-1.9.1.js"></script>
    <script>
        $(document).ready(function () {
            $("#btn1").click(function () {
                $("p").append(" <b>Appended text</b>.");
            });

            $("#btn2").click(function () {
                $("ol").append("<li>Appended item</li>");
            });
        });
    </script>
</head>

<body>
    <p>This is a paragraph.</p>
    <p>This is another paragraph.</p>
    <ol>
        <li>List item 1</li>
        <li>List item 2</li>
        <li>List item 3</li>
    </ol>
    <button id="btn1">Append text</button>
    <button id="btn2">Append list items</button>
</body>
</html>

http://wiki.jikexueyuan.com/project/jquery-tutorial/images/6.png" alt="" />

prepend 示例：

<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <title>JQuery Demo</title>
    <script src="scripts/jquery-1.9.1.js"></script>
    <script>
        $(document).ready(function () {
            $("#btn1").click(function () {
                $("p").prepend("<b>Prepended text</b>. ");
            });
            $("#btn2").click(function () {
                $("ol").prepend("<li>Prepended item</li>");
            });
        });
    </script>
</head>
<body>

    <p>This is a paragraph.</p>
    <p>This is another paragraph.</p>
    <ol>
        <li>List item 1</li>
        <li>List item 2</li>
        <li>List item 3</li>
    </ol>

    <button id="btn1">Prepend text</button>
    <button id="btn2">Prepend list item</button>

</body>
</html>

http://wiki.jikexueyuan.com/project/jquery-tutorial/images/7.png" alt="" />

append(),prepend()支持同時插入多個元素，下面的例子添加三個使用不同方法創(chuàng)建的新元素：

function appendText()
 {
 // Create element with HTML
 var txt1="<p>Text.</p>";
// Create with jQuery
 var txt2=$("<p></p>").text("Text.");
 // Create with DOM
 var txt3=document.createElement("p");
 txt3.innerHTML="Text.";
 // Append the new elements
 $("p").append(txt1,txt2,txt3);
 }

下面的例子使用 after,before 在指定的元素前后面添加新內(nèi)容：

<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <title>JQuery Demo</title>
    <script src="scripts/jquery-1.9.1.js"></script>
    <script>
        $(document).ready(function () {
            $("#btn1").click(function () {
                $("img").before("<b>Before</b>");
            });

            $("#btn2").click(function () {
                $("img").after("<i>After</i>");
            });
        });
    </script>
</head>

<body>
    <img src="/images/guidebee.png"
        alt="guidebee" width="120" height="125">
    <br>
    <br>
    <button id="btn1">Insert before</button>
    <button id="btn2">Insert after</button>
</body>
</html>

http://wiki.jikexueyuan.com/project/jquery-tutorial/images/8.png" alt="" />

同樣 after,before 也支持同時插入多個元素：

function afterText()
 {
  // Create element with HTML 
 var txt1="<b>I </b>";   
// Create with jQuery 
 var txt2=$("<i></i>").text("love ");   
// Create with DOM 
 var txt3=document.createElement("big");  
 txt3.innerHTML="jQuery!";
  // Insert new elements after img
 $("img").after(txt1,txt2,txt3);         
 }

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添加HTML元素