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C# params¹Ø¼ü×Ö

´úÂ룺
using System;
using System.Collections.Generic;
using System.Text;
namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine(Test("Jack"));//²»´«Öµ£¬ÏÔʾJack
            Console.WriteLine(Test("Jack", "Hi"));//´«Ò»¸öÖµ£¬ÏÔʾJack Hi
            Console.WriteLine(Test("Jack", "Hi", "How are you?"));//´«¶à¸öÖµ£¬ÏÔʾJack Hi How are you?
            Console.ReadKey();
        }
        static string Te ......

C#È¡µÃÓòÃûÒÔ¼°Ä¿Â¼µØÖ·µÄ·½·¨

using System;
using System.Collections.Generic;
using System.Text;
using System.Web;
namespace SinvanCMS.Common
{
    /// <summary>
    /// È«¾ÖÀ࣬µ±Ç°ÓòÃû£¬ÎïÀí·¾¶
    /// </summary>
    public class Application
    {
        /// <summary>
        /// »ñµÃurl·¾¶, http://localhost/www_dalian/fangyuan.asp µÄapp²¿·ÖÈ磺http://localhost/www_dalian
        /// </summary>
        public static string AppUrl
        {
            get
            {
                return "http://" + System.Web.HttpContext.Current.Request. ......

C# °²×°²¼Êð ¼°Windows·þÎñ×Ô¶¯Æô¶¯

ÉèÖÃserviceProcessInstaller1¿Ø¼þµÄAccountÊôÐÔΪ“LocalSystem”
ÉèÖÃserviceInstaller1¿Ø¼þµÄStartTypeÊôÐÔΪ"Automatic"
ÔÚ·þÎñÆ÷ÉÏÌí¼Ó°²×°³ÌÐò£¬ÔÚprivate void ProjectInstaller_AfterInstall(object sender, InstallEventArgs e)ʼþÖУ¬Ìí¼ÓÒÔÏ´úÂ룺
Process p = new Process();
p.StartInfo.FileName = "cmd.exe";
p.StartInfo.UseShellExecute = false;
p.StartInfo.RedirectStandardInput = true;
p.StartInfo.RedirectStandardOutput = true;
p.StartInfo.RedirectStandardError = true;
p.StartInfo.CreateNoWindow = true;
p.Start();
string Cmdstring = "sc start myservice"; //CMDÃüÁî
p.StandardInput.WriteLine(Cmdstring);
p.StandardInput.WriteLine("exit");
¼´¿ÉÔÚ°²×°·þÎñºóÁ¢¿ÌÆô¶¯windows·þÎñ
 
 
×¢£º ÒýÓÃusing System.Diagnostics;//µ÷ÓÃProcess
 
C#°²×°²¼Êð
½¨Á¢Ò»¸öÐµİ²×°ÏîÄ¿ServerSetup£¨Îª¸Õ²ÅÄǸö·þÎñ½¨Á¢Ò»¸ö°²×°ÏîÄ¿£© 
ÓÒ¼ü£­Ìí¼Ó£­ÏîÄ¿Êä³ö£­Ö÷Êä³ö£­Ñ¡ÔñSer ......

ORACLE³öÏÖÊý¾Ý¿éËð»µ(ORA

Èç¹ûORACLE³öÏÖÁËÊý¾Ý¿éËð»µ, µ¼ÖÂSQLÓï¾ä²éѯÎÞ·¨Íê³É, ¿ÉÒÔ²ÉÓÃÏÂÃæµÄ·½·¨, ½«Ë𻵵ĿéÅųýµô, ÕâÒâζׯᶪʧÊý¾Ý.
 ·½·¨ÈçÏ£º
1. ÒÔSYSµÇ¼ORACLE,Ö´ÐÐ: ALTER SYSTEM SET EVENTS='10231 trace name context forever,level 10' ;
 
2. ½«±íÖеÄÊý¾Ý¿½±´µ½ÁíÍâµÄ±í: CREATE TABLE GLB_PCB_PRINTED_BAK  AS SELECT * from GLB_PCB_PRINTED;
 
3.½«±íÖØÐÂÃüÃû: ALTER TABLE GLB_PCB_PRINTED RENAME TO GLB_PCB_PRINTED_01;
 
                            ALTER TABLE GLB_PCB_PRINTED_BAK RENAME TO GLB_PCB_PRINTED;
 
4.ÖØ½¨Ë÷ÒýµÈÆäËü¶ÔÏó ......

ORACLE°æ±¾ºÅ½â¶Á

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oracle 9.0.1.1.2
¡¡¡¡
¡¡¡¡9£º°æ±¾ºÅ
¡¡¡¡0£ºÐÂÌØÐÔ°æ±¾ºÅ
¡¡¡¡1£¨µÚÒ»¸ö£©£ºÎ¬»¤°æ±¾ºÅ
¡¡¡¡1£¨µÚ¶þ¸ö£©£ºÆÕͨµÄ²¹¶¡ÉèÖúÅÂë
¡¡¡¡2£ºÌØÊâµÄƽ̨²¹¶¡ÉèÖúÅÂë
ÆäËû°æ±¾µÄ»°Ò»¸öÒ»¸öÍùÉÏÌ׾ͿÉÒÔÀ² ......

Oracle ltrim() º¯ÊýÏêϸÓ÷¨

½ñÌìÔÚÂÛ̳Àï¿´ÁËһƪÌû×Ó£¬ÌÖÂÛltrim() º¯ÊýµÄÏêϸÓ÷¨£¬ÏÂÃæÎҽ輸¸ö¸ßÊֵĻشð×ܽáһϣº
ÏÈ¿´¼¸¸öʵÀý£º
SQL> select ltrim('109224323','109') from dual;
LTRIM('109224323','109')
------------------------
224323
Õâ¸öµÄ¹¦ÄÜÓ¦¸Ã¶¼ÖªµÀµÄàÞ~~  ÔÙÀ´¿´Ò»¸ö£º
SQL> select ltrim('10900094323','109') from dual;
LTRIM('10900094323','109')
---------------------------
4323
ÊDz»ÊÇÓеãÃÔºýÁË£¿°´µÀÀí˵Ӧ¸ÃÊÇ00094323µÄ½á¹ûÂï~~  ÔÙÀ´¿´Á½¸ö¶Ô±ÈµÄ£º
SQL> select ltrim('10900111000991110224323','109') from dual;
LTRIM('10900111000991110224323
------------------------------
224323
SQL> select ltrim('109200111000991110224323','109') from dual;
LTRIM('10920011100099111022432
------------------------------
200111000991110224323
ÊDz»ÊÇÓÐÕâÑùµÄÒÉÎÊ£ºÎªÊ²Ã´µÚ¶þ¸ö²éѯÓï¾ä¶àÁËÒ»¸ö2¾Íû±»½ØÁËÄØ£¿
ÔÙÀ´¿´Ò»¸ö£º
SQL> select ltrim('902100111000991110224323','109') from dual;
LTRIM('90210011100099111022432
------------------------------
2100111000991110224323
ÎÒÏë´ó¼Ò¶¼¶¼»áÏë£ ......
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