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<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
    <title>ÎÞ±êÌâÒ³</title>
    <script type="text/javascript">
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    function onUnLoad()
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        document.getElementById( "myDiv" ).detachEvent( "onclick", on_myDivClick );
    }
    function on_myDivClick( e )
    {
        if( !e ) e = window.event;
        alert( "event: " + e.type + ", fromElement = " + e.srcElement.id );
    }
    </script>
</head>
<body onload="onLoad()" onunload="onUnLoad()">
<div id="myDiv">
    <input type="button" id="btn1" value="button1" />
    <input type="button" id="btn2" value="button2" />
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</body>
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if(num <= 2){
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return Fibonacci(num - 1) + Fibonacci(num - 2)
}
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Fibonacci(30);
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