<!DOCTYPE?html>
<html?lang="en">
<head>
????<meta?charset="UTF-8">
????<title>Title</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)頁添加動態(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)語法、函數(shù)、數(shù)組、事件、內(nèi)置對象、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、對象、運(yùn)動、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="col">
????<input?type="button"?value="改變寬高"?onclick="wid">
????<input?type="button"?value="隱藏內(nèi)容"?onclick="dis">
????<input?type="button"?value="顯示內(nèi)容"?onclick="blo">
????<input?type="button"?value="取消設(shè)置"?onclick="non">
</form>
<script?type="text/javascript">
????//定義"改變顏色"的函數(shù)
?function?col(){
???????var?mycolor=document.getElementById("txt");
???????mycolor.style.backgroundColor="red";
???????mycolor.style.color="#foo";
???}
????//定義"改變寬高"的函數(shù)
?function?wid(){
????????var?mycolor=document.getElementById("txt");
????????mycolor.style.width="100%";
????????mycolor.style.height="100%";
????}
????//定義"隱藏內(nèi)容"的函數(shù)
?function?dis(){
????????var?mycolor=document.getElementById("txt");
????????mycolor.style.display="block";
????}
????//定義"顯示內(nèi)容"的函數(shù)
?function?blo(){
????????var?mycolor=document.getElementById("txt");
????????mycolor.style.display="none";
????}
????//定義"取消設(shè)置"的函數(shù)
?function?non()?{
????????var?mycolor=confirm("是否確定取消設(shè)置?");
????????if(mycolor==true){
????????????mycolor.style="";
????????}
????}
</script>
</body>
</html>
2017-02-27
<input?type="button"?value="改變顏色"?onclick="col()">
????<input?type="button"?value="改變寬高"?onclick="wid()">
????<input?type="button"?value="隱藏內(nèi)容"?onclick="dis()">
????<input?type="button"?value="顯示內(nèi)容"?onclick="blo()">
????<input?type="button"?value="取消設(shè)置"?onclick="non()"><<<<< 都加上()
mycolor.style.color="#foo";<<<<< ?"#f00" 應(yīng)是兩個零不是字母o?
2017-02-23
onclick="函數(shù)名()" 你沒有寫括號