📄 ex9-6.htm

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    <html><head><title>数组属性应用展示</title>
    <h2>数组属性</h2>
        <script language="JavaScript">
         <!--
            var book = new Array(6);   //创建数组对象
            book[0] = "PowerBuilder 9 开发人员指南"; //数组元素赋值
            book[1] = "新华字典";
            book[2] = "君子兰";
            book[3] = "朗文当代高级英语词典";
            book[4] = "笑林广记";
            book[5] = "佛教常识答问";
         // -->
        </script>
    </head>
    <body bgcolor="lightblue">
        <script language="JavaScript">
         <!--
            document.write("<h3>book数组中有" + book.length + "个元素</h3>");
            book.length=9;
            for (var i=0;i<book.length;i++){
               document.write("<br>book["+i+"]="+book[i]);
            }            
            document.write("<h3>book数组中有" + book.length + "个元素</h3>");
            for (var i in book){
               document.write("<br>book["+i+"]="+book[i]);
            }                        
         // -->
        </script>
    </body>
    </html>

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