搞了一下对double型二维数组排序，用DataTable来实现

Question

直接使用数组的Sort方法估计更有效率，后面用到再试着弄
        #region double_Array[,] 排序方法
        /*
          用途：对Double类型的 2维数组，根据第二列进行升降排序
          范例：
                    int saa = 0;
                    double[,] testArr = new double[6, 2];
                    for (int i = 0; i < 6; i++)
                    {
                        for (int j = 0; j < 2; j++)
                        {
                            testArr[i, j] = saa;
                            saa += 1;
                        }
                    }
                    testArr[2, 0] = 99;
                    testArr[2, 1] = 55;                Mdb_Data.Sort_doubleArray(ref testArr, "theNumber_showCount DESC");          注意：
                1、Double二维数组，第二个维度一定是0、1两个列，绝对不能超过1，因为此方法我只是为了：
                   例如 双色球0～33个数字，每个数字都出现了若干次，请降序排列
                2、将此方法的第二个字符串型参数中的 DESC 改成 ASC 即可实现升序排列
                3、注意此方法结尾部分的一个DataRow[]定义
                    DataRow[] foundRows;//注意这个Row定义 返回二维的Row数组，可通过foundRows[i][0]来访问
                4、如果下次需要对数组的列或者其他进行改动：
                    column的添加通过for来添加
                    column.ColumnName = "whatNumber_in_Loto";<--Name通过数组的方式来命名
                    "whatNumber_in_Loto > -90000"这个参数需要改写成全部行的条件
                    row的赋值也必须改成for循环来根据列的数组名称来赋值
         */
        //----------------------------------------------------------------------//|
        public void Sort_doubleArray(ref double[,] sort_Double_Arr, string sortExpression)
        {                                                                       //|
            DataSet DataSet_sortTable_in_this = new DataSet();                  //|
            DataTable sortTable_Instantiated = new DataTable("sortTable_Name"); //|
            DataColumn column;                                                  //|
            DataRow row;                                                        //|
            //                                                                  //|
            column = new DataColumn();                                          //|
            column.DataType = System.Type.GetType("System.Double");             //|
            column.ColumnName = "whatNumber_in_Loto";                           //|
            column.ReadOnly = false;                                            //|
            // Add the Column to the DataColumnCollection.                      //|
            sortTable_Instantiated.Columns.Add(column);                         //|
            //                                                                  //|
            // Create second column.                                            //|
            column = new DataColumn();                                          //|
            column.DataType = System.Type.GetType("System.Double");             //|
            column.ColumnName = "theNumber_showCount";                          //|
            column.AutoIncrement = false;                                       //|
            column.ReadOnly = false;                                            //|
            column.Unique = false;                                              //|
            //                                                                  //|
            sortTable_Instantiated.Columns.Add(column);                         //|
            //                                                                  //|
            for (int ids = 0; ids < sort_Double_Arr.GetLength(0); ids++)        //|
            {                                                                   //|
                row = sortTable_Instantiated.NewRow();                          //|
                row["whatNumber_in_Loto"] = sort_Double_Arr[ids, 0];            //|
                row["theNumber_showCount"] = sort_Double_Arr[ids, 1];           //|
                sortTable_Instantiated.Rows.Add(row);                           //|
            }                                                                   //|
            //                                                                  //|
            DataRow[] foundRows;//注意这个DataRow[]的数组定义，一般定义都不带括号，这个返回二维的Row数组，可通过foundRows[i行][0]来访问
            //                                                                  //|
            foundRows = sortTable_Instantiated.Select("whatNumber_in_Loto > -90000", sortExpression);//为什么是-90000，因为一般的数字都是从0开始到正数去，选择-90000主要是不希望有负数时候不能使用此方法
            for (int ifr = 0; ifr < foundRows.Length; ifr++)                    //|
            {                                                                   //|
                sort_Double_Arr[ifr, 0] = Convert.ToDouble(foundRows[ifr][0]);  //|
                sort_Double_Arr[ifr, 1] = Convert.ToDouble(foundRows[ifr][1]);  //|
            }                                                                   //|
            //                                                                  //|
            foundRows = sortTable_Instantiated.Select("whatNumber_in_Loto = -90000", sortExpression);//清空foundRows
            DataSet_sortTable_in_this.Clear();//清空DataSet                     //|
        }//  <--Sort_doubleArray()方法   End                                    //|
        //----------------------------------------------------------------------//|
        #endregion

Answer 1

楼主 可以写在你的 blog中。