<!DOCTYPE html>

<html>

    <head>

        <meta charset="utf-8">

        <title></title>

        <script src="js/jquery.js"></script>

    </head>

<style>

body{font-family: "微軟雅黑";width: 980px; margin: 0 auto; text-align: center;}

    .box{

        width: 300px;

        height: 300px;

        background: green;

        border: 1px solid #e6e6e6;

        line-height: 200px;

        position: absolute;

    }

button{

    border: none;

    background: green;    

    width: 125px;

    height: 50px;

    line-height: 50px;

    color: #fff;

    font-size: 16px;

    margin-top: 50px;

    font-family: "微軟雅黑";

    }

</style>

    <body>

        <button id="btn1">顯示text</button>

        <button id="btn2">顯示html</button>

        <button id="btn3">顯示輸入內(nèi)容</button>

        <p id="text">這是要顯示<b>粗體</b>的節(jié)奏</p>

        <br />

        <input id="input" value="買房子"> 

        <script>

            $(document).ready(function(){

                $("#btn1").click(function(){

                    alert("Text: " + $("#text").text());

                });

                $("#btn2").click(function(){

                    alert("HTML: " + $("#text").html());

                });

                $("#btn3").click(function(){

                    alert("Value: " +$("#input").val());

                });

            });

        </script>

    </body>

</html>