代码：
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title
</title>
</head>
<body>
<div id="box">
文件
</div>
</body>
</html>
<script src="https://code.jquery.com/jquery-3.3.1.min.js "></script>
<script>
$(
'#box').
after(
'<div>编辑</div>')
;
$(
'#box').
before(
'<div>视图</div>')
</script>
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