代码是这样写的，浏览看到的是上下的页面啊
<!doctype html>
<html lang="en">
<title>Document</title>
<head>
<style>
#left{ float:left; width:100px;}
#right{ float:left; width:500px;}
</style>
</head>
<body>
<div id="content">
<div id="left">左边</div>
<div id="right">右边</div>
</div>
</body>
</html>
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FROM 124.78.9.*