老师帮忙检查一下作业

来源：1-14 编程练习

汤姆克鲁琛

2020-04-17 19:52:55

<!DOCTYPE html>
<html>
    <head>
        <meta charset="UTF-8">
        <title>打开/关闭页面</title>
    </head>
    <body>
       <input type="button" value="关闭本页面" id="close">
       <input type="button" value="打开慕课网" id="open">
       <script type="text/javascript">
       var cl=document.getElementById("close"),
           op=document.getElementById("open");
        cl.onclick=function(){
            window.close();
        }
        op.onclick=function(){
            window.open("http://www.imooc.com","imooc")
        }
       </script>
    </body>
</html>

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