下面这段导出为excel的思路谁能解释一下吗
public void print(DataGridView dataGridView1) { //导出到execl try { SaveFileDialog saveFileDialog = new SaveFileDialog(); saveFileDialog.Filter = "导出Excel (*.xls)|*.xls"; saveFileDialog.FilterIndex = 0; saveFileDialog.RestoreDirectory = true; saveFileDialog.CreatePrompt = true; saveFileDialog.Title = "导出文件保存路径"; saveFileDialog.ShowDialog(); string strName = saveFileDialog.FileName; if (strName.Length != 0) { if (dataGridView1.Rows.Count == 0) { return; } System.Reflection.Missing miss = System.Reflection.Missing.Value; Microsoft.Office.Interop.Excel.Application excel = new Microsoft.Office.Interop.Excel.Application(); excel.Application.Workbooks.Add(true); excel.Visible = false; if (excel == null) { MessageBox.Show("EXCEL无法启动！", "错误", MessageBoxButtons.OK, MessageBoxIcon.Error); return; } Microsoft.Office.Interop.Excel.Workbooks books = (Microsoft.Office.Interop.Excel.Workbooks)excel.Workbooks; Microsoft.Office.Interop.Excel.Workbook book = (Microsoft.Office.Interop.Excel.Workbook)(books.Add(miss)); Microsoft.Office.Interop.Excel.Worksheet sheet = (Microsoft.Office.Interop.Excel.Worksheet)book.ActiveSheet; for (int i = 0; i < dataGridView1.Columns.Count; i++) { excel.Cells[1, i + 1] = dataGridView1.Columns[i].HeaderText; } for (int i = 0; i < dataGridView1.Rows.Count ; i++) { for (int j = 0; j < dataGridView1.Columns.Count; j++) { if (dataGridView1[j, i].ValueType == typeof(string)) { excel.Cells[i + 2, j + 1] = "'" + dataGridView1[j, i].Value.ToString(); } else { excel.Cells[i + 2, j + 1] = dataGridView1[j, i].Value.ToString(); } } } sheet.SaveAs(strName, miss, miss, miss, miss, miss, Microsoft.Office.Interop.Excel.XlSaveAsAccessMode.xlNoChange, miss, miss, miss); book.Close(false, miss, miss); books.Close(); excel.Quit(); System.Runtime.InteropServices.Marshal.ReleaseComObject(sheet); System.Runtime.InteropServices.Marshal.ReleaseComObject(book); System.Runtime.InteropServices.Marshal.ReleaseComObject(books); System.Runtime.InteropServices.Marshal.ReleaseComObject(excel); GC.Collect(); MessageBox.Show("数据已经成功导出!", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information); System.Diagnostics.Process.Start(strName); } } catch (Exception ex) { MessageBox.Show(ex.Message, "错误提示"); } }