delete运算符(删除对象)

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<!DOCTYPE html><html lang="en"><head>    <meta http-equiv="content-type" content="text/html;charset=UTF-8">    <title>delete运算符(删除对象)</title>    <script type="text/javascript">        <!--         myObject=new Object();        myObject.width=10;        if(delete myObject.width)        {            document.write("对象被删除了,删除后width属性为:",myObject.width,"<br/>");        }        else        {            document.write("对象没有被删除,width属性为:",myObject.width,"<br/>");        }        if(delete myObject)        {            document.write("对象被删除了","<br/>");        }        else        {            document.write("对象没有被删除",myObject,"<br/>");        }                -->    </script></head><body></body></html>
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