<!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"?onclick="color()"?>??
????<script>
????var?mycolor=document.getElementById("txt")
????????function?color(){
????????????mycolor.style.color="#00F";
????????????mycolor.style.backgroundColor="red";?
????????}
????</script>
????<input?type="button"?value="改變寬高"?onclick="width()"?>
????<script>
????????var?mywidth?=document.getElementById("txt")
????????function?width(){
????????????mywidth.style.width="200px";
????????????mywidth.style.height="200px";
????????}
????</script>
????<input?type="button"?value="隱藏內(nèi)容"?onclick="none()">
????<script>
????????var?mynone?=document.getElementById("txt")
????????function?none(){
????????????mynone.style.display="none";
????????}
????</script>
????<input?type="button"?value="顯示內(nèi)容"?onclick="block()">
????<script>
????????var?myblack=document.getElementById("txt");
????????function?block()
????????{
????????????mublack.style.display="block";
????????}
????</script>
????<input?type="button"?value="取消設(shè)置"?onclick="shez">
????<script>
????
????????function?shez{
????????????var?myshez=window.confirm("是否取消設(shè)置");
????????????if(myshez==true)
????????????{
????????????????myshez.removeAttribute("style");
????????????}else{}
????????}
????</script>
??</form>
??<script?type="text/javascript">
//定義"改變顏色"的函數(shù)
//定義"改變寬高"的函數(shù)
//定義"隱藏內(nèi)容"的函數(shù)
//定義"顯示內(nèi)容"的函數(shù)
//定義"取消設(shè)置"的函數(shù)
??</script>
</body>
</html>
2016-03-23
函數(shù)命名有問(wèn)題,還有沒(méi)有();前后變量名不一致,
2016-03-24
37行和40行 ? 不要取名width,有沖突;
57行 ? ? ? ? ? ? ?定義的是myblack ?錯(cuò)寫(xiě)成mublack;
60行 ? ? ? ? ? ? 缺少括號(hào);
63行 ? ? ? ? ? ?缺少括號(hào);
67行 ? ? ? ? ? ? 你的選擇器是confirm 不是txt;應(yīng)該增加:mystyle=document.getElementById("txt");
????????????????????然后mystyle.removeAttribute("style");
2016-03-23
<input?type="button"?value="顯示內(nèi)容"?onclick="block()">
????<script>
????????var?myblack=document.getElementById("txt");
????????function?block()
????????{
????????????myblack.style.display="block";
????????}
????</script>
2016-03-23
<input?type="button"?value="取消設(shè)置"?onclick="shez">括號(hào)