JavaScript学习－数组

<% -- JavaScript学习 -- %>
     < script  type ="text/javascript"  language ="JavaScript" >  
         function  funArray()
        {
             /*
                定义数组，成员可以单引号，也可以用双引号
                两逗号中不写值，即表示空元素，空元素值为undefined.
                最后一个元素为表达式
             */
             var  arr = [ " name " ,, ' age ' , 20 + 1 ]
             for ( var  iCou = 0 ;iCou < arr.length;iCou ++ )
            {
                alert(arr[iCou]);
            }

        }

        //数组中包含数组

        function  funArrArray()
        {
             /*
                数组中可以包含数组。如下边的定义
             */
             var  arr = [ 123 ,[ " name " , " scott " , ' age ' , 20 ],[ " xx " , " yy " , 1 ]];
             for ( var  i = 0 ;i < arr.length;i ++ )
            {
                 // 如果不存在length属性，则表示是元素。
                 if (arr[i].length)
                {
                     for ( var  j = 0 ;j < arr[i].length;j ++ )
                    {
                        alert(arr[i][j]);
                    }
                }
                 else
                {
                    alert(arr[i]);
                }                
            }            
        }
         // 使用Array创建数组
         function  funArrayFunction()
        {
             var  arr = new  Array();
            arr[ 0 ] = " name " ;
            arr[ 1 ] = " scott " ;
            arr.sort();
             for ( var  iVal  in  arr)
            {
                alert(arr[iVal]);
            }
            
        }
     </ script >


             <% -- 测试使用的按钮 -- %>
             < input  id ="Button1"  type ="button"  runat ="server"  value ="测试"  onclick ="funArray();"   />
             < input  id ="Button2"  type ="button"  runat ="server"  value ="测试SubArray"  onclick ="funArrArray();"   />
             < input  id ="Button3"  type ="button"  runat ="server"  value ="测试SubArray"  onclick ="funArrayFunction();"   />