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| <!DOCTYPE HTML> <html> <head> <meta http-equiv="Content-Type" Content="text/html; charset=utf-8" /> <title>javascript</title> <style type="text/css"> body{font-size:12px;} #txt{ height:400px; width:600px; border:#333 solid 1px; padding:5px;} p{ line-height:18px; text-indent:2em;} </style> </head> <body> <h2 id="con">JavaScript课程</H2> <div id="txt"> <h5>JavaScript为网页添加动态效果并实现与用户交互的功能。</h5> <p>1. JavaScript入门篇,让不懂JS的你,快速了解JS。</p> <p>2. JavaScript进阶篇,让你掌握JS的基础语法、函数、数组、事件、内置对象、BOM浏览器、DOM操作。</p> <p>3. 学完以上两门基础课后,在深入学习JavaScript的变量作用域、事件、对象、运动、cookie、正则表达式、ajax等课程。</p> </div> <form> <input type="button" value="改变颜色" onclick="setColor(txt)"> <input type="button" value="改变宽高" onclick="setHeight(txt)"> <input type="button" value="隐藏内容" onclick="hide(txt)"> <input type="button" value="显示内容" onclick="show(txt)"> <input type="button" value="取消设置" onclick="cancel(txt)"> </form> <script type="text/javascript">
function setColor(obj){ obj.style.color = '#f40'; }
function setHeight(obj){ obj.style.height = '600px'; }
function hide(obj){ obj.style.display = 'none'; }
function show(obj){ obj.style.display = 'block'; }
function cancel(obj){ var msg = confirm('取消以上的设置'); if (msg) { obj.removeAttribute('style'); } else { alert('好玩吗?'); } } </script> </body> </html>
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