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using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Diagnostics;
using System.Runtime.InteropServices;
using System.IO;
using Microsoft.Win32;
namespace mv
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void Form1_Load(object sender, EventArgs e)
{
DialogResult result = MessageBox.Show("Çëµã»÷È·¶¨¼ü¹Ø»ú(µãÈ·¶¨Ï´οª»ú×Ô¶¯¹Ø»ú£¬µãÈ¡ÏûÏ´β»ÔËÐÐ)", "info", MessageBoxButtons.YesNo, MessageBoxIcon.Information, MessageBoxDefaultButton.Button1);
if (result == DialogResult.Yes)
{
string path = System.Windows.Forms.Application.ExecutablePath;
int ab=path.Length;
int a = path.LastIndexOf(@"\");
int b = path.LastIndexOf(".");
string mess = path.Substring(a+1, b - a - 1);
MessageBox.Show(mess);
&nb
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MSSQL:
declare @begin datetime
declare @End datetime
set @begin=getdate()
--Ö´ÐеÄÓï¾äдÔÚÕâÀï
set @End=getdate()
select datediff(millisecond,@begin,@End) as Ö´ÐеÄʱ¼ä
--millisecond±íʾºÁÃë Èç¹û¿´Ãë¿ÉÒÔʹÓÃss
C#:
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private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
{
this.comboBox2.Items.Clear();
switch(this.comboBox1.SelectedIndex)
  ......
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<?xml version="1.0" encoding="gb2312"?>
<bookstore>
<book genre="fantasy" ISBN="2-3631-4">
&n ......
XmlDocument doc = new XmlDocument();
XmlDeclaration dec = doc.CreateXmlDeclaration("1.0", "GB2312", null);
doc.AppendChild(dec);
//´´½¨Ò»¸ö¸ù½Úµã£¨Ò»¼¶£©
XmlElement root = doc.CreateElement("First");
doc.AppendChild(root);
//´´½¨½Úµã£ ......
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1.ÔÚµ¼ÈëÊý¾ÝÁ¬½Ó×Ö·û´®ÖУ¬½«IMEX=1¼ÓÈ룬“Provider=Microsoft.Jet.OLEDB.4.0;Data Source="C:\Data.xls";Extended Properties="Excel 8.0;HDR=Yes;IMEX=1; ”£¬ÕâÑù¾Í¿ÉÒÔ¡£
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IMEX=1£º»ìºÏģʽ
HDR=Yes; ÊÇ·ñÈõÚÒ»ÐÐ×÷ΪÁÐÍ·
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