<!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課程</H2>? <div id="txt"> ???? <h5>JavaScript為網(wǎng)頁(yè)添加動(dòng)態(tài)效果并實(shí)現(xiàn)與用戶交互的功能。</h5>??????? <p>1. JavaScript入門篇，讓不懂JS的你，快速了解JS。</p>??????? <p>2. JavaScript進(jìn)階篇，讓你掌握J(rèn)S的基礎(chǔ)語(yǔ)法、函數(shù)、數(shù)組、事件、內(nèi)置對(duì)象、BOM瀏覽器、DOM操作。</p>??????? <p>3. 學(xué)完以上兩門基礎(chǔ)課后，在深入學(xué)習(xí)JavaScript的變量作用域、事件、對(duì)象、運(yùn)動(dòng)、cookie、正則表達(dá)式、ajax等課程。</p>? </div>? <form>? <!--當(dāng)點(diǎn)擊相應(yīng)按鈕，執(zhí)行相應(yīng)操作，為按鈕添加相應(yīng)事件-->??? <input type="button" value="改變顏色" >? ??? <input type="button" value="改變寬高" >??? <input type="button" value="隱藏內(nèi)容" >??? <input type="button" value="顯示內(nèi)容" >??? <input type="button" value="取消設(shè)置" >? </form>? <script type="text/javascript">var txt=document.getElementById("txt");var set{??? changeColor:function(){??????? txt.style.color="red";??????? txt.style.backgroundColor="#ccc";??? },??? changeSize:function(){??????? txt.style.width="400px";??????? txt.style.height="800px";??? },??? objHide:function(){??????? txt.style.display="none";??? },??? objShow:function(){??????? txt.style.display="block";??? },?? ??? offSet:function(){??????? var message=confirm("是否取消設(shè)置？");??????? if (message==true){??????????? txt.removeAttribute("style");??????? }??? }?}? </script></body></html>
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