将字符串转换为二维数组

                            var arr1=mtxts.split(";");

                            var arr2 = new array(arr1.length);

                            for (var i = 0; i < arr1.length-1; i++)

                       {

                         //定义临时数组

                         var temp =new array(2);

                         //将一维数组再次拆分，准备存入二维数组

                         temp = arr1[i].split("*");

                         //定义将要存放数据的一维数组的每一个元素都为一个数组(实际上就是定义二维数组了)

                         arr2[i] = new array(temp.length);

                         //遍历临时数组将其值存入二维数组

                         for (var j = 0; j < temp.length; j++)

                         {

                           arr2[i][j] = temp[j];//完成字符串转换为二维数组

                         }