點(diǎn)了沒反應(yīng),求大神指點(diǎn)
<!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="changecolor()" >??
? ? <input type="button" value="改變寬高" onClick="changesize()">
? ? <input type="button" value="隱藏內(nèi)容" onClick="hideya()">
? ? <input type="button" value="顯示內(nèi)容" onClick="showya()">
? ? <input type="button" value="取消設(shè)置" onClick="resetya()">
? </form>
? <script type="text/javascript">
//定義"改變顏色"的函數(shù)
var mycon= document.getElementById("con");
var mytxt= document.getElementById("txt");
function changecolor(){
? ? mycon.style.color="red";
? ? mytxt.style.backgroundColor="#ccc";
}
//定義"改變寬高"的函數(shù)
function changesize(){
? ? mycon.style.width="500px";
? ? mytxt.style.height="500px";
}
//定義"隱藏內(nèi)容"的函數(shù)
function hideya(){
? ? mycon.style.display="none";
? ? mytxt.style.display="none";
}
//定義"顯示內(nèi)容"的函數(shù)
function showya(){
? ? mycon.style.display="block";
? ? mycon.style.display="block";
}
//定義"取消設(shè)置"的函數(shù)
function resetya(){
? ? var mychoice=confirm(){
? ? ? ? if(mychoice==true){
? ? ? ? ? ? mycon.removeAttribute("style");
? ? ? ? }
? ? }
}
? </script>
</body>
</html>
2020-11-25
onclick()函數(shù)大小寫錯(cuò)誤,showya()函數(shù)兩個(gè)對(duì)象名一樣
2020-11-11
? ?你參考一下我的:
<!DOCTYPE?HTML>
<html>
<head>
<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?=?"ChangeColor()">??
????<input?type="button"?value="改變寬高"?onclick?=?"ChangeHW()">
????<input?type="button"?value="隱藏內(nèi)容"?onclick?=?"Nothing()">
????<input?type="button"?value="顯示內(nèi)容"?onclick?=?"Something()">
????<input?type="button"?value="取消設(shè)置"?onclick?=?"Cancelall()">
??</form>
??
??<script?type="text/javascript">
??var?myh?=?document.getElementById("con");
??var?mydiv?=?document.getElementById("txt");
????????function?ChangeColor(){
????????????
????????????myh.style.color?=?"green";
????????????myh.style.background?=?"black";
???????????
????????????mydiv.style.color?=?"red";
????????????mydiv.style.background?=?"#CCC";
????????}
????????function?ChangeHW?(){
????????????
????????????mydiv.style.width?=?"500px";
????????????mydiv.style.height?=?"400px";
????????}
????????function?Nothing?()?{
????????????
????????????mydiv.style.display?=?"none";
????????}
????????function?Something?()?{
????????????mydiv.style.display?=?"block";
????????}
????????function?Cancelall?()?{
????????????var?judge?=?confirm?("是否取消所有設(shè)置?");
????????????if?(judge?==?true){
????????????????mydiv.removeAttribute?("style");
????????????????myh.removeAttribute?("style");
????????????}
????????????else{
????????????????alrt("保留當(dāng)前設(shè)置");
????????????}
????????}
??</script>
</body>
</html>