有關(guān)c的幾個(gè)代碼實(shí)例

1、怎么在C#中用計(jì)時(shí)器關(guān)閉任務(wù)管理器2010-07-05 20:48引用命名空間： using System.Diagnostics;計(jì)時(shí)器事件中的代碼： private void timer1_Tick(object sender, EventArgs e) try this.Activate(); Process myProcess = Process.GetProcesses(); foreach (Process p in myProcess) if (p.ProcessName = "taskmgr") p.Kill(); return; catch (Except

2、ion ex) Console.WriteLine(ex.Message); /5、N個(gè)人圍成一圈，由編號(hào)為1的人開(kāi)始報(bào)數(shù)，報(bào)到單數(shù)的退出，報(bào)到雙數(shù)的留下。求當(dāng)只留一個(gè)人時(shí)，這個(gè)人是原來(lái)的幾號(hào)？ using System;using System.Collections.Generic;using System.Text;using System.IO;using System.Collections;namespace Word class TheFive public void GetNum() Console.WriteLine("請(qǐng)輸入圍圈人的總數(shù):"); int

3、sum = int.Parse(Console.ReadLine(); int num = new intsum; int s = sum; int i = 0; int q = 0; int y = 0; int e = 0; for (; i < sum; i+) numi = i + 1; if (i = (sum - 1) i = 0; break; while (s > 1) int j = 0; j = i; int k = i; for (; i < sum; i+)/246 /012345 /135 if (sum > 1) if (j + 1) % 2

4、 = 1) if (numi > 0) numi = 0; s-; /123456 j+; if (s = 1) break;/020406 if (s = 1) break; e = 0; q = 0; for (i = 0; i < sum; i+) if (numi = 0) q+; else nume = numi; e+; if (i = (sum - 1) y = sum - q; for (i = sum - 1; i > 0; i-) if (q > 0) numi = 0; q-; else break; if (q = 0) break; i = 0

5、; for (i = 0; i < sum; i+) if (numi > 0) Console.WriteLine(); Console.WriteLine("留下來(lái)的是第0位!",numi); break; Excel導(dǎo)出類(lèi)2010-05-24 16:35using System;using System.Collections.Generic;using System.Text;using System.IO;using System.Data;using System.Windows.Forms;using Microsoft.Office.Intero

6、p.Excel;namespace AssetsManage.Operation class Export private static System.Windows.Forms.DataGridView gridView; private static System.Windows.Forms.ToolStripProgressBar toolStripProgressBar1; private static Timer time; private static DataSet objSet = new DataSet(); private static SaveFileDialog sav

7、eFileDialog = new SaveFileDialog(); private static SaveFileDialog saveFileDialog2 = new SaveFileDialog(); public static System.Windows.Forms.DataGridView _gridView get return gridView; set gridView = value; public static System.Windows.Forms.ToolStripProgressBar _toolStripProgressBar1 get return too

8、lStripProgressBar1; set toolStripProgressBar1 = value; public static Timer _time get return time; set time = value; public static DataSet _objSet get return objSet; set objSet.Clear(); objSet = value; /導(dǎo)出當(dāng)前頁(yè)DataGridView中的數(shù)據(jù)到EXcel中 public static void ExportTOExcel() if (gridView.Rows.Count = 0) Messa

9、geBox.Show("沒(méi)有數(shù)據(jù)可供導(dǎo)出！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information); return; else saveFileDialog.Filter = "Execl files (*.xls)|*.xls" saveFileDialog.FilterIndex = 0; saveFileDialog.RestoreDirectory = true; saveFileDialog.CreatePrompt = true; saveFileDialog.T

10、itle = "導(dǎo)出文件保存路徑" saveFileDialog.ShowDialog(); string strName = saveFileDialog.FileName; if (strName.Length != 0) toolStripProgressBar1.Visible = true; System.Reflection.Missing miss = System.Reflection.Missing.Value; Microsoft.Office.Interop.Excel.ApplicationClass excel = new Microsoft.Of

11、fice.Interop.Excel.ApplicationClass(); excel.Application.Workbooks.Add(true); ; excel.Visible = false;/若是true，則在導(dǎo)出的時(shí)候會(huì)顯示EXcel界面。 if (excel = null) MessageBox.Show("EXCEL無(wú)法啟動(dòng)！", "錯(cuò)誤", MessageBoxButtons.OK, MessageBoxIcon.Error); return; Microsoft.Office.Interop.Excel.Workbooks boo

12、ks = (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; sheet.Name = "te

13、st" /生成字段名稱(chēng) for (int i = 0; i < gridView.ColumnCount; i+) excel.Cells1, i + 1 = gridView.Columnsi.HeaderText.ToString(); /填充數(shù)據(jù) for (int i = 0; i < gridView.RowCount - 1; i+) for (int j = 0; j < gridView.ColumnCount; j+) if (gridViewj, i.Value = typeof(string) excel.Cellsi + 2, j + 1 =

14、"" + gridViewi, j.Value.ToString(); else excel.Cellsi + 2, j + 1 = gridViewj, i.Value.ToString(); toolStripProgressBar1.Value += 100 / gridView.RowCount; sheet.SaveAs(strName, miss, miss, miss, miss, miss, Microsoft.Office.Interop.Excel.XlSaveAsAccessMode.xlNoChange, miss, miss, miss); boo

15、k.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.ReleaseComObj

16、ect(excel); GC.Collect(); MessageBox.Show("數(shù)據(jù)已經(jīng)成功導(dǎo)出到：" + saveFileDialog.FileName.ToString(), "導(dǎo)出完成", MessageBoxButtons.OK, MessageBoxIcon.Information); toolStripProgressBar1.Value = 0; toolStripProgressBar1.Visible = false; /- /導(dǎo)出整個(gè)DataGridView中的數(shù)據(jù)到Excel中 public static void Expor

17、tTOExcel2() if (gridView.Rows.Count = 0) MessageBox.Show("沒(méi)有數(shù)據(jù)可供導(dǎo)出！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information); return; else saveFileDialog2.Filter = "Execl files (*.xls)|*.xls" saveFileDialog2.FilterIndex = 0; saveFileDialog2.RestoreDirectory = true; /sa

18、veFileDialog2.CreatePrompt = true; saveFileDialog2.Title = "導(dǎo)出文件保存路徑" saveFileDialog2.FileName = null; saveFileDialog2.ShowDialog(); string FileName = saveFileDialog2.FileName; if (FileName.Length != 0) toolStripProgressBar1.Visible = true; System.Data.DataTable dt = objSet.Tables0; FileSt

19、ream objFileStream; StreamWriter objStreamWriter; string strLine = "" objFileStream = new FileStream(FileName, FileMode.OpenOrCreate, FileAccess.Write); objStreamWriter = new StreamWriter(objFileStream, System.Text.Encoding.Unicode); toolStripProgressBar1.Value = 0; for (int i = 0; i <

20、dt.Columns.Count; i+) strLine = strLine + dt.Columnsi.ColumnName.ToString() + Convert.ToChar(9); objStreamWriter.WriteLine(strLine); strLine = "" for (int i = 0; i < dt.Rows.Count; i+) strLine = strLine + (i + 1) + Convert.ToChar(9); for (int j = 1; j < dt.Columns.Count; j+) strLine

21、= strLine + dt.Rowsij.ToString() + Convert.ToChar(9); objStreamWriter.WriteLine(strLine); toolStripProgressBar1.Value += 100 / dt.Rows.Count; strLine = "" objStreamWriter.Close(); objFileStream.Close(); MessageBox.Show("數(shù)據(jù)已經(jīng)成功導(dǎo)出到：" + saveFileDialog2.FileName.ToString(), "導(dǎo)出完

22、成", MessageBoxButtons.OK, MessageBoxIcon.Information); toolStripProgressBar1.Value = 0; toolStripProgressBar1.Visible = false; / /導(dǎo)出到XML(整個(gè)數(shù)據(jù)源) public static void ExportTOXML() if (gridView.Rows.Count = 0) MessageBox.Show("沒(méi)有數(shù)據(jù)可供導(dǎo)出！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information); return; else saveFileDialog2.Filter = "XML file