JavaScript：多种定义数组的方式

 <script>
        var arr1 = ["one", "two", "three"];
        document.write("方法一："+arr1);
    </script>

    <br>

    <script>
        var arr2 = new Array("one","two","three");
        document.write("方法二："+arr2);
    </script>

    <br>

    <!--动态赋值，不用固定数组的大小-->
    <script>
        var arr3 = new Array();
        arr3[0] = "one";
        arr3[1] = "two";
        arr3[2] = "three";
        document.write("方法三："+arr3);
    </script>