功能是按下按鈕，單詞如果是good，就變成bad，如果是bad，就變成good
///////////////////////////////////////////////////////////////////////////////
<!DOCTYPE?html>
<html>
<head>
<meta?charset="utf-8">
<script?type="text/javascript">
function?changeword(){
var?newword=document.getElementsByClassName('word');
if?(newword[0]=="good")?{
newword[0]="bad";
}
else{
newword[0]="good";
}
}
</script>
<title>changeword</title>
</head>
<body>
<input?type="button"?value="changeword"?id="abutton"?onclick="changeword()">
<p?class="word">good</p>
</body>
</html>
為什么這段javascript小代碼無(wú)法實(shí)現(xiàn)詞語(yǔ)替換
newsudhc3634140
2016-07-31 15:08:52
