ÀûÓà DataGridView »æÖÆÍ¼Æ¬ÁÐ±í£¨´ÓAccess¶ÁȡͼƬ£©
using System;
using System.IO;
using System.Runtime.InteropServices;
using System.Threading;
using System.Windows.Forms;
using Microsoft.Win32;
using Access = Microsoft.Office.Interop.Access;
namespace ImageAccess
{
static class Program
{
#region DllImportAttribute
[DllImport("user32.dll", EntryPoint = "ShowWindow")]
static extern bool ShowWindow(IntPtr handle, int flags);
[DllImport("user32.dll", EntryPoint = "SetForegroundWindow")]
static extern bool SetForegroundWindow(IntPtr handle);
#endregion
[STAThread]
static void Main()
{
#region Mutex
bool isCreated; // »¥³âÌåÃû³ÆÐëΨһ¡£
using (Mutex newMutex = new Mutex(true, @"Local\ImageAccess", out isCreated))
{
if (isCreated)
{
string dbPath = Path.Combine(Application.StartupPath, "Images.mdb");
if (File.Exists(dbPath))
&nb
Ïà¹ØÎĵµ£º
±¾À´¿¼ÂÇÓÃXMLÎļþÀ´´æÊý¾ÝÊÇÒòΪÆä¿çƽ̨ÐÔ£¬¶øÇÒ²»Óð²×°Ìض¨µÄÈí¼þ¡£µ«¾¹ýÑо¿ÁËÒ»Õó×Ó·¢ÏÖ£¬XMLÓÃÓÚ´æ·ÅÉÙÊý¾ÝÊÇ¿ÉÒÔ£¬µ«´æ·Å´óÖÐÐÍÊý¾Ý¾ÍÏԵúܳÔÁ¦£¬»³ÒÉҲûÓÐÈË»áÕâô×ö¡£¶øÈç¹û²ÉÓÃSQL SERVER´æÊý¾Ý£¬ÓÖÏԵñȽÏÇü²Å£¬±Ï¾¹ÎÒ×öµÄÖ»ÊÇÑо¿¿Í»§¶ËµÄÒ»¸öС³ÌÐò£¬ÅäÖôú¼ÛҲ̫´óÁË¡£»ùÓÚÕâÁ½ÕßÖ®¼ä£¬»¹ÊǾö¶¨Ñ ......
JDBCÁ¬½ÓMySQL
¼ÓÔØ¼°×¢²áJDBCÇý¶¯³ÌÐò
Class.forName("com.mysql.jdbc.Driver");
Class.forName("com.mysql.jdbc.Driver").newInstance();
JDBC URL ¶¨ÒåÇý¶¯³ÌÐòÓëÊý¾ÝÔ´Ö®¼äµÄÁ¬½Ó
±ê×¼Óï·¨£º
<protocol£¨Ö÷ҪͨѶÐÒ飩>:<subprotocol£¨´ÎҪͨѶÐÒ飬¼´Çý¶¯³ÌÐòÃû³Æ£©>:<da ......
µ±È»£¬altera FPGA µÄJTAGºÍASÏÂÔØÄ£Ê½ÊǵÃÕâô½Ó¡£µ«ÊÇ£¬ÎÒÓиöСÌáÐѸø¸÷λ£ºÇë×¢ÒâVCCAµÄ¶¨Ò壬VCCAÊÇͬʱ¸øFPGAËøÏ໷·¹©µçµÄ2.5V¡£ÔÚËøÏà»·Òý½ÅÉÏÎÒ½ÓÓÐ0.01uFµÄµçÈÝ£¬¿ÉÒÔÏëÏóËüÄܹ»ÒƳý´óÔ¼100MHzÒÔÉϵÄÉ䯵ÄÜÁ¿£¬Òò´Ë¶ÔJTAGÏÂÔØ¿ÚµÄÆäÉÏÀ×÷ÓõÄVCCAÓ°Ïì²»´ó£¨JTAGÅäÖÃģʽµÄ´ø¿í²¢²»¸ß£©£¬0.01uFµÄµçÈݲ»¿ÉÄÜ¶Ô ......
sqlserver£ºupdate Table_A set Table_A.col1 = (select Table_B.col1 from Table_B where Table_A.col2 = Table_B.col2)
Access: UPDATE Table_ A, Table_B SET Table_ A.×Ö¶Î2 = Table_ B.×Ö¶Î2
WHERE Table_ A.񅧏=Table_ A.񅧏;
×Ô¼º¼ÇÏ£¬ÌáÐÑ×Ô¼º ......
×î½üϵͳÔËÐÐÖз¢ÏÖAccess 2003 °æ±¾ÖжԴý Null ºÍ ‘’ £¨¿Õ×Ö·û£©Ææ¹ÖÎÊÌâ£¬ÖØÏÖ²½Ö裺
1¡¢´´½¨±ítabTest £»
2¡¢Ê¹ÓÃÉè¼ÆÊÓͼÌí¼ÓÁ½¸ö×Ö¶Î ID £¬col1
Ãû³Æ
ÀàÐÍ
³¤¶È
˵Ã÷
ID
Number
Ö÷¼ü£¬×ÔÔö
Col1
char
1
ÎÞ
3¡¢Ê¹ÓÃsql Ìí¼ÓÈçÏÂÊý¾Ý
-- col1 ×Ö¶ÎÉèÖÃΪ null
INS ......