<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>document.getElementById</title>
</head>
<body>
<p id="con">JavaScript</p>
<script type="text/javascript">
var mychar = document.getElementById("con");
console.log(mychar);
alert(mychar) ;
document.write("结果:" + mychar);
</script>
</body>
</html>
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