<!DOCTYPE?html>
<html>
<head>
????<script?src="jquery-1.12.2.min.js"?type="text/javascript"?charset="utf-8"?async?defer>j</script>
????<meta?charset="UTF-8">
????<style?type="text/css"?media="screen">
?????.red{?color:red;}
?????.green{?color:green;}
????</style>
????
????<title>Document</title>
</head>
<body>
???<div>立正,向我這邊看齊</div>
????????<div>我先歇歇腳</div>
????????
????????<script?type="text/javascript">
????????????var?$redHTML?=?$(".red").html();
????????????$(".green").html($redHTML);
????????</script>??
</body>
</html>
1 回答

李曉健
TA貢獻(xiàn)1036條經(jīng)驗(yàn) 獲得超461個(gè)贊
<script?src="jquery-1.12.2.min.js"?type="text/javascript"?charset="utf-8"></script>
引入js文件時(shí),script標(biāo)簽中不用寫東西,你多寫了一個(gè)j (當(dāng)然寫上也不會(huì)有問題)
jquery文件不可以使用異步載入 ,也就是說不需要添加?async defer?
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