操作EXCEL代码（c#完全版）

    using System;
    using System.Collections;
    using Excel=Microsoft.Office.Interop.Excel;

    namespace WindowsApplication1
    {
        ///
        /// 对Excel进行操作的类。
        ///
        public class JointExcel
        {
            #region 私有成员
            private Excel.ApplicationClass m_objExcel;//Excel应用程序对象
            private Excel.Workbooks m_objBooks;//Excel的Books对象
            private Excel.Workbook m_objBook;//当前Book对象
            private Excel.Worksheet m_objSheet;//当前Sheet对象
            private Excel.Range m_Range;//当前Range对象
            private System.Reflection.Missing miss =
            System.Reflection.Missing.Value;//空数据变量
            private Excel.Font m_Font;//当前单元格的字体属性对象
            private Excel.Borders m_Borders;//当前单元格或者区域的边框属性对象

            //单元格的四条边框对象
            private Excel.Border m_BorderTop;
            private Excel.Border m_BorderBottom;
            private Excel.Border m_BorderLeft;
            private Excel.Border m_BorderRight;

            private Excel.Range m_cellRange;//单元格Range对象，用来取得对象的Rows和Columns属性对象

            //单元格列号数组
            private string[] m_colString = new string[26] { "A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M", "N", "O", "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z"};
            #endregion

            ///
            /// 本类使用在web application中时，请在Web.Config中添加
            ///
            ///
            public JointExcel()
            {
                m_objExcel = new Excel.ApplicationClass();
                m_objBooks = (Excel.Workbooks)m_objExcel.Workbooks;
                m_objBook = (Excel.Workbook)(m_objBooks.Add(miss));
                m_objSheet = (Excel.Worksheet)m_objBook.ActiveSheet;
            }

            ~JointExcel()
            {
                //释放所有Com对象
                if (m_cellRange != null)
                    System.Runtime.InteropServices.Marshal.ReleaseComObject(m_cellRange);
                if (m_BorderTop != null)
                    System.Runtime.InteropServices.Marshal.ReleaseComObject(m_BorderTop);
                if (m_BorderBottom != null)
                    System.Runtime.InteropServices.Marshal.ReleaseComObject(m_BorderBottom);
                if (m_BorderLeft != null)
                    System.Runtime.InteropServices.Marshal.ReleaseComObject(m_BorderLeft);
                if (m_BorderRight != null)
                    System.Runtime.InteropServices.Marshal.ReleaseComObject(m_BorderRight);
                if (m_Borders != null)
                    System.Runtime.InteropServices.Marshal.ReleaseComObject(m_Borders);
                if (m_Font != null)
                    System.Runtime.InteropServices.Marshal.ReleaseComObject(m_Font);
                if (m_Range != null)
                    System.Runtime.InteropServices.Marshal.ReleaseComObject(m_Range);
                if (m_objSheet != null)
                    System.Runtime.InteropServices.Marshal.ReleaseComObject(m_objSheet);
                if (m_objBook != null)
                    System.Runtime.InteropServices.Marshal.ReleaseComObject(m_objBook);
                if (m_objBooks != null)
                    System.Runtime.InteropServices.Marshal.ReleaseComObject(m_objBooks);
                if (m_objExcel != null)
                    System.Runtime.InteropServices.Marshal.ReleaseComObject(m_objExcel);
                GC.Collect();
            }

            #region 选定单元格
            private string GetCell(int ColNum, int RowNum)
            {
                string temp = "A";
                int row = RowNum+1;
                if (ColNum < 0 || ColNum > 255)
                {
                    throw new Exception("行号错误");
                }
                int i0, i1 = 0;
                i0 = Math.DivRem(ColNum, 25, out i1);
                if (i0 == 0 && i1 == 0)
                {
                    return "A" + row.ToString();
                }
                if (i0 == 0 && i1 > 0)
                {
                    return m_colString[i1] + row.ToString();
                }
                else
                {
                    //return temp + m_colString[i0] + row.ToString();
                    return m_colString[i0] + m_colString[i1] + row.ToString();
                }
            }
            ///
            /// 选定相应单元格
            ///
            /// int 列号
            /// int 行号
            public void SetRange(int ColNum, int RowNum)
            {
                m_Range = m_objSheet.get_Range((object)GetCell(ColNum, RowNum), miss);
                m_Font = m_Range.Font;
                m_Borders = m_Range.Borders;

                m_BorderTop = m_Borders[Excel.XlBordersIndex.xlEdgeTop];
                m_BorderBottom = m_Borders[Excel.XlBordersIndex.xlEdgeBottom];
                m_BorderLeft = m_Borders[Excel.XlBordersIndex.xlEdgeLeft];
                m_BorderRight = m_Borders[Excel.XlBordersIndex.xlEdgeRight];

                m_cellRange = m_Range;
            }
            ///
            /// 选择相应的区域
            ///
            /// 起始单元格列号
            /// 起始单元格行号
            /// 结束单元格列号
            /// 结束单元格行号
            public void SetRange(int startColNum, int startRowNum, int endColNum, int
          endRowNum)
            {
                m_Range =
             m_objSheet.get_Range((object)GetCell(startColNum, startRowNum), (object)GetCell(endColNum, endRowNum));
                m_Font = m_Range.Font;
                m_Borders = m_Range.Borders;

                m_BorderTop = m_Borders[Excel.XlBordersIndex.xlEdgeTop];
                m_BorderBottom = m_Borders[Excel.XlBordersIndex.xlEdgeBottom];
                m_BorderLeft = m_Borders[Excel.XlBordersIndex.xlEdgeLeft];
                m_BorderRight = m_Borders[Excel.XlBordersIndex.xlEdgeRight];

                m_cellRange = m_Range;
            }
            #endregion

            //开始具体的Excel操作
            #region 给单元格附值
            ///
            /// 给选定单元格附值
            ///
            /// 值
            public void SetCellValue(string value)
            {
                if (m_Range == null) throw new System.Exception("没有设定单元格或者区域");
                m_Range.Value2 = value;
            }
            ///
            /// 给选定单元格附值
            ///
            /// 列号
            /// 行号
            /// 值
            public void SetCellValue(int row, int col, string value)
            {
                SetRange(col, row);
                m_Range.Value2 = value;
                m_Range.Font.Name = "Arial";
                m_Range.Font.Size = 9;
            }

            ///
            /// 合并选定区域后给其附值
            ///
            /// 起始行号
            /// 起始列号
            /// 结束行号
            /// 结束列号
            /// 值
            public void SetCellValue(int startRow, int startCol, int endRow, int
          endCol, string value)
            {
                Merge(startRow, startCol, endRow, endCol);
                m_Range.Value2 = value;
                m_Range.Font.Size = 9;
                m_Range.HorizontalAlignment = Excel.XlHAlign.xlHAlignCenterAcrossSelection;
               
            }
            #endregion

            public void SetCellbolk(int row, int col)
            {
                SetRange(col, row);
                m_Range.Font.Bold = true;
            }

            #region 设定单元格对齐方式
            ///
            /// 设定单元格中文字的对齐方式
            ///
            /// 对齐方式
            //public void SetHorizontal(JointEmun.ExcelAlign ea)
            //{
            //    if (m_Range == null) throw new System.Exception("没有设定单元格或者区域");
            //    switch (ea.ToString())
            //    {
            //        case "Left":
            //            m_Range.HorizontalAlignment = Excel.XlHAlign.xlHAlignLeft;
            //            break;
            //        case "Right":
            //            m_Range.HorizontalAlignment = Excel.XlHAlign.xlHAlignRight;
            //            break;
            //        case "center":
            //            m_Range.HorizontalAlignment = Excel.XlHAlign.xlHAlignCenter;
            //            break;
            //        default:
            //            m_Range.HorizontalAlignment = Excel.XlHAlign.xlHAlignLeft;
            //            break;
            //    }
            //}
            ///
            /// 设定单元格中文字的对齐方式
            ///
            /// 单元格行号
            /// 单元格列号
            /// 对齐方式
          //  public void SetHorizontal(int rowIndex, int columnIndex, JointEmun.ExcelAlign
          //ea)
          //  {
          //      SetRange(columnIndex, rowIndex);
          //      switch (ea.ToString())
          //      {
          //          case "Left":
          //              m_Range.HorizontalAlignment = Excel.XlHAlign.xlHAlignLeft;
          //              break;
          //          case "Right":
          //              m_Range.HorizontalAlignment = Excel.XlHAlign.xlHAlignRight;
          //              break;
          //          case "center":
          //              m_Range.HorizontalAlignment = Excel.XlHAlign.xlHAlignCenter;
          //              break;
          //          default:
          //              m_Range.HorizontalAlignment = Excel.XlHAlign.xlHAlignLeft;
          //              break;
          //      }
          //  }
            ///
            /// 设定选定区域的对齐方式
            ///
            /// 起始行号
            /// 起始列号
            /// 结束行号
            /// 结束列号
            /// 对齐方式
          //  public void SetHorizontal(int startRowIndex, int startColumnIndex, int
          //endRowIndex, int endColumnIndex, JointEmun.ExcelAlign ea)
          //  {
          //      SetRange(startColumnIndex, startRowIndex, endColumnIndex, endRowIndex);
          //      switch (ea.ToString())
          //      {
          //          case "Left":
          //              m_Range.HorizontalAlignment = Excel.XlHAlign.xlHAlignLeft;
          //              break;
          //          case "Right":
          //              m_Range.HorizontalAlignment = Excel.XlHAlign.xlHAlignRight;
          //              break;
          //          case "center":
          //              m_Range.HorizontalAlignment = Excel.XlHAlign.xlHAlignCenter;
          //              break;
          //          default:
          //              m_Range.HorizontalAlignment = Excel.XlHAlign.xlHAlignLeft;
          //              break;
          //      }
          //  }
            #endregion

            #region 设置行高和列宽
            ///
            /// 设置列宽
            ///
            /// 列宽度
            public void SetColumnWidth(float columnWidth)
            {
                m_Range.ColumnWidth = columnWidth;
            }
            ///
            /// 设置列宽
            ///
            /// 列号
            /// 列宽度
            public void SetColumnWidth(int columnIndex, float columnWidth)
            {
                SetRange(columnIndex, 0);
                m_Range.ColumnWidth = columnWidth;
            }
            ///
            /// 设置行高
            ///
            /// 行宽度
            public void SetRowHeigh(float rowHeigh)
            {
                m_Range.RowHeight = rowHeigh;
            }
            ///
            /// 设置行高
            ///
            /// 行号
            /// 行宽度
            public void SetRowHeigh(int rowIndex, float rowHeigh)
            {
                SetRange(0, rowIndex);
                m_Range.RowHeight = rowHeigh;
            }
            #endregion

            #region 合并单元格
            ///
            /// 将选定区域中的单元格合并
            ///
            public void Merge()
            {
                m_Range.Merge(null);
            }
            ///
            /// 将选定区域中的单元格合并
            ///
            /// 起始行号
            /// 起始列号
            /// 结束行号
            /// 结束列号
            public void Merge(int startRowIndex, int startColumnIndex, int endRowIndex,
          int endColumnIndex)
            {
                SetRange(startColumnIndex, startRowIndex, endColumnIndex, endRowIndex);
                m_Range.Merge(null);
            }
            #endregion

            #region 设置字体名称、大小
            ///
            /// 设置区域内的字体
            ///
            /// 起始行号
            /// 起始列号
            /// 结束行号
            /// 结束列号
            /// 字体名称
            public void SetFont(int startRowIndex, int startColumnIndex, int endRowIndex,
          int endColumnIndex, string fontName)
            {
                SetRange(startColumnIndex, startRowIndex, endColumnIndex, endRowIndex);
                m_Font.Name = fontName;
            }
            ///
            /// 设置区域内的字号（文字大小）
            ///
            /// 起始行号
            /// 起始列号
            /// 结束行号
            /// 结束列号
            /// 字号
            public void SetFont(int startRowIndex, int startColumnIndex, int endRowIndex,
          int endColumnIndex, int fontSize)
            {
                SetRange(startColumnIndex, startRowIndex, endColumnIndex, endRowIndex);
                m_Font.Size = fontSize;
            }
            ///
            /// 设置区域内的字体以及字号
            ///
            /// 起始行号
            /// 起始列号
            /// 结束行号
            /// 结束列号
            /// 字体名称
            /// 字号
            public void SetFont(int startRowIndex, int startColumnIndex, int endRowIndex,
          int endColumnIndex, string fontName, int fontSize)
            {
                SetRange(startColumnIndex, startRowIndex, endColumnIndex, endRowIndex);
                m_Font.Name = fontName;
                m_Font.Size = fontSize;
            }
            ///
            /// 设置单元格的字体和字号
            ///
            /// 行号
            /// 列号
            /// 字体
            /// 字号
            public void SetFont(int rowIndex, int columnIndex, string fontName, int
          fontSize)
            {
                SetRange(columnIndex, rowIndex);
                m_Font.Name = fontName;
                m_Font.Size = fontSize;
            }
            ///
            /// 设置单元格的字体
            ///
            /// 行号
            /// 列号
            /// 字体
            public void SetFont(int rowIndex, int columnIndex, string fontName)
            {
                SetRange(columnIndex, rowIndex);
                m_Font.Name = fontName;
            }
            ///
            /// 设置单元格的字号
            ///
            /// 行号
            /// 列号
            /// 字号
            public void SetFont(int rowIndex, int columnIndex, int fontSize)
            {
                SetRange(columnIndex, rowIndex);
                m_Font.Size = fontSize;
            }
            ///
            /// 设定字体
            ///
            /// 字体
            public void SetFont(string fontName)
            {
                m_Font.Name = fontName;
            }
            ///
            #endregion

            public void setcolor(int rowSum, int colSum, int endrowSum, int endcolIndex,int color)
            {
                m_objSheet.get_Range(m_objExcel.Cells[rowSum, colSum], m_objExcel.Cells[endrowSum, endcolIndex]).Select();
                m_objSheet.get_Range(m_objExcel.Cells[rowSum, colSum], m_objExcel.Cells[endrowSum, endcolIndex]).Interior.ColorIndex = color;//设置为浅黄色，共
            }

            //畫邊框
            public void setline(int row, int col)
            {
                //xSt.get_Range(excel.Cells[4, 2], excel.Cells[rowSum, colIndex]).Borders.LineStyle = 1;
                //xSt.get_Range(excel.Cells[4, 2], excel.Cells[rowSum, 2]).Borders[XlBordersIndex.xlEdgeLeft].Weight = XlBorderWeight.xlThick;//设置左边线加粗
                //xSt.get_Range(excel.Cells[4, 2], excel.Cells[4, colIndex]).Borders[XlBordersIndex.xlEdgeTop].Weight = XlBorderWeight.xlThick;//设置上边线加粗
                //xSt.get_Range(excel.Cells[4, colIndex], excel.Cells[rowSum, colIndex]).Borders[XlBordersIndex.xlEdgeRight].Weight = XlBorderWeight.xlThick;//设置右边线加粗
                //xSt.get_Range(excel.Cells[rowSum, 2], excel.Cells[rowSum, colIndex]).Borders[XlBordersIndex.xlEdgeBottom].Weight = XlBorderWeight.xlThick;//设置下边线加粗
                SetRange(col, row);
                m_Range.Borders.LineStyle = 1;
            }
            public void setline(int srow, int scol, int erow, int ecol, int linetype)
            {
                m_objSheet.get_Range(m_objExcel.Cells[srow, scol], m_objExcel.Cells[erow, ecol]).Borders.LineStyle = linetype;
              
            }

            public void setlinebold(int srow, int scol, int erow, int ecol, int linetype)
            {
                m_objSheet.get_Range(m_objExcel.Cells[srow, scol], m_objExcel.Cells[erow, ecol]).Borders.LineStyle = linetype;
                m_objSheet.get_Range(m_objExcel.Cells[srow, scol], m_objExcel.Cells[erow, ecol]).Borders[Excel.XlBordersIndex.xlEdgeLeft].Weight = Excel.XlBorderWeight.xlThick;//设置左边线加粗
                m_objSheet.get_Range(m_objExcel.Cells[srow, scol], m_objExcel.Cells[erow, ecol]).Borders[Excel.XlBordersIndex.xlEdgeTop].Weight = Excel.XlBorderWeight.xlThick;//设置上边线加粗
                m_objSheet.get_Range(m_objExcel.Cells[srow, scol], m_objExcel.Cells[erow, ecol]).Borders[Excel.XlBordersIndex.xlEdgeRight].Weight = Excel.XlBorderWeight.xlThick;//设置右边线加粗
                m_objSheet.get_Range(m_objExcel.Cells[srow, scol], m_objExcel.Cells[erow, ecol]).Borders[Excel.XlBordersIndex.xlEdgeBottom].Weight = Excel.XlBorderWeight.xlThick;//设置下边线加粗

            }

            public void setline_left(int srow, int scol, int erow, int ecol, int linetype)
            {

                m_objSheet.get_Range(m_objExcel.Cells[srow, scol], m_objExcel.Cells[erow, ecol]).Borders[Excel.XlBordersIndex.xlEdgeLeft].LineStyle = linetype;
            }
            public void setline_right(int srow, int scol, int erow, int ecol, int linetype)
            {
 
                m_objSheet.get_Range(m_objExcel.Cells[srow, scol], m_objExcel.Cells[erow, ecol]).Borders[Excel.XlBordersIndex.xlEdgeRight].LineStyle = linetype;
              
            }
            public void setline_top(int srow, int scol, int erow, int ecol, int linetype)
            {

                m_objSheet.get_Range(m_objExcel.Cells[srow, scol], m_objExcel.Cells[erow, ecol]).Borders[Excel.XlBordersIndex.xlEdgeTop].LineStyle = linetype;

            }
            public void setline_btoon(int srow, int scol, int erow, int ecol, int linetype)
            {
                m_objSheet.get_Range(m_objExcel.Cells[srow, scol], m_objExcel.Cells[erow, ecol]).Borders[Excel.XlBordersIndex.xlEdgeBottom].LineStyle = linetype;

            }

            //賦值2
            public void SetCellValue2(int srow, int scol, int erow, int ecol,string value)
            {
                m_Range=m_objSheet.get_Range(m_objExcel.Cells[srow, scol], m_objExcel.Cells[erow, ecol]);
                m_Range.Value2 = value;
                m_Range.Font.Name = "Arial";
                m_Range.Font.Size = 9;
            }

            public void SetCellbolk2(int srow, int scol, int erow, int ecol)
            {
                m_Range = m_objSheet.get_Range(m_objExcel.Cells[srow, scol], m_objExcel.Cells[erow, ecol]);
                m_Range.Font.Bold = true;
            }

            public void save()
            {
                 m_objBook.SaveAs(@"E:\Demo.xls", miss, miss, miss, miss, miss, Excel.XlSaveAsAccessMode.xlNoChange, miss, miss, miss, miss, miss);
                 m_objBook.Close(miss, miss, miss);
                 m_objExcel.Quit();
                GC.Collect();
            }

           
        }
    }