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  • C#Á¬½ÓºÍ²éѯSql serverÊý¾Ý¿â

    2008-06-06 15:27:27

     

    using System;
    using System.Data;
    using System.Data.SqlClient;
    using System.Collections.Generic;
    using System.Text;

    namespace Êý¾Ý¿âѧϰ
    {
        class Program
        {
            static void Main(string[] args)
            {

    //ʹÓÃÇáÁ¿¼¶µÄSqlDataReaderÏÔʾÊý¾Ý
                //Ö¸¶¨Sql ServerÌṩÕßµÄÁ¬½Ó×Ö·û´®
                string connString = "server=192.168.99.45;database =northwind;uid =sa;pwd=1";

                //½¨Á¢Á¬½Ó¶ÔÏó

                SqlConnection Sqlconn = new SqlConnection(connString);
                //´ò¿ªÁ¬½Ó
                Sqlconn.Open();

                ////ΪÉÏÃæµÄÁ¬½ÓÖ¸¶¨Command¶ÔÏó
                //SqlCommand thiscommand = Sqlconn.CreateCommand();
                //thiscommand.CommandText = "select customerID,companyName from customers";

                ////Ϊָ¶¨µÄcommand¶ÔÏóÖ´ÐÐDataReader
                //SqlDataReader thisSqlDataReader = thiscommand.ExecuteReader();

                ////Ö»ÒªÓÐÊý¾Ý
                //while (thisSqlDataReader.Read())
                //{
                ////Êä³öÊý¾Ý
                //    Console.WriteLine("\t{0}\t{1}", thisSqlDataReader["customerId"], thisSqlDataReader["companyName"]);
                //}
                ////¹Ø±Õ¶ÁÈ¡
                //thisSqlDataReader.Close();
                ////¹Ø±ÕÁ¬½Ó
                //Sqlconn.Close();
                //Console.ReadLine();

    //ʹÓÃdatasetÏÔʾÊý¾Ý

                // ²éѯ×Ö·û´®
                string   thisCommand = "select customerID,companyName from customers";

                //´´½¨SqlDataAdapter¶ÔÏó,ÓÐÁ½¸ö²ÎÊý£¬Ò»¸öÊDzéѯ×Ö·û´®£¬Ò»¸öÊÇÁ¬½Ó¶ÔÏó
                SqlDataAdapter SqlDap = new SqlDataAdapter(thisCommand,Sqlconn);
              
                //´´½¨DataSet¶ÔÏó

                DataSet thisDataset = new DataSet();
               
                //ʹÓÃSqlDataAdapterµÄFill·½·¨Ìî³äDataSet£¬ÓÐÁ½¸ö²ÎÊý£¬Ò»¸öÊÇ´´½¨µÄDataSetʵÀý£¬Ò»¸öÊÇÌîÈëµÄ±í

                SqlDap.Fill(thisDataset, "customers");

                //ÏÔʾ²éѯ½á¹û

                foreach (DataRow theRow in thisDataset.Tables["customers"].Rows)

                {
                    Console.WriteLine(theRow["customerID"] + "\t" + theRow["companyName"]);
                }
                Sqlconn.Close();

                Console.ReadLine();

            }
        }
    }

  • VbscriptÖеĶ¯Ì¬Êý×éÒÔ¼°´ÓexcelÖÐÈ¡Öµ£¬·ÅÈ붯̬Êý×éÖÐ

    2008-06-04 23:55:00

    1£®Vbscr¨©ptÖеĶ¯Ì¬Êý×éÒÔ¼°´ÓexcelÖÐÈ¡Öµ£¬·ÅÈ붯̬Êý×éÖС£

    '¶¨ÒåÈ«¾Ö±äÁ¿£¬¹©ËùÓгÌÐò¿éʹÓÃ,·Ö±ðΪexcelʵÀý¶ÔÏó£¬excelÁÐÖµÊý×é

    dim objExcel

    dim ary()

    ' ¶¨Òå°ÑexcelÖÐÁеÄֵת»»ÎªÊý×éµÄº¯Êý

    function testF(i)

    redim ary(i)

    ary(i)=objexcel.cells(i,1).value

    testF = ary(i)

    end function

     

    sub test

    '´ò¿ªexcel¶ÔÏó

    set ¨­bjExcel = createobject("excel.application")

    set ¨­bjwk=objexcel.workbooks.open("d:\myfile.xls")

    Set Driver = DDT.ExcelDriver("d:\MyFile.xls", "Sheet1")

    for i =1 to 4

     log.message testF(i)

    next

    end sub

     

     

  • TestCompleteÖеÄSys¶ÔÏóµÄÊôÐԺͷ½·¨(1)

    2008-06-03 06:24:53

    2.SYS ¶ÔÏó

     

    The Sys object ¡°represents¡± the system in your scr¨©pts -- everything outside TestComplete. Its methods and properties allow you to control scr¨©pt execution, interact with active windows, simulate key presses, etc. For instance, the following code assigns the clipboard contents to cl:

    VBscr¨©pt Copy Code

    Set cl = Sys.Clipboard

    Jscr¨©ptCopy Code

    cl = Sys.Clipboard();

    Delphiscr¨©pt, DelphiCopy Code

    cl: = Sys.Clipboard;

    C++scr¨©pt, C#scr¨©pt, C++, C#Copy Code

    cl = Sys["Clipboard"]();

    Sys Properties

    Sys PropertiesSys Properties

    Name

    Descr¨©ption

    _NewEnum (inherited from Common)

    Returns an enumerator for the collection of children that belongs to the current object.

    ChildCount (inherited from Common)

    Returns the number of child objects of the current object.

    ·µ»Øµ±Ç°¶ÔÏóµÄ×Ó¶ÔÏóµÄÊýÄ¿

    Clipboard

    Puts text or images to the clipboard or retrieves the clipboard data.

    °ÑÎı¾»òÕßͼƬ·ÅÈë¼ôÌù°å»òÕß»ñÈ¡¼ôÌù°åÖеÄÊý¾Ý

    CORBA

    Returns the CORBA object, which lets you work with CORBA objects that reside on the local or remote computer.

    ·µ»ØCORBA¶ÔÏó,ÈÃÄã¿ÉÒÔ²Ù×÷±¾»ú»òÕßÔ¶³ÌµÄCORBA¶ÔÏó

    CPU

    Stores the model and frequency of the computer¡¯s processor(s).

    ´æ´¢¼ÆËã»ú´¦ÀíÆ÷µÄÐͺźÍƵÂÊ

    CPUCount

    Returns the number of CPUs installed on your computer.

    ·µ»Ø±¾»úCPUµÄ¸öÊý

    CPUUsage

    Returns the current approximate percentage of CPU time used by the operating system and all running processes.

    ·µ»Ø´ó¸ÅµÄµ±Ç°±»²Ù×÷ϵͳÒÔ¼°ËùÓнø³ÌÕ¼ÓõÄCPU°Ù·Ö±È

    Desktop

    Returns the desktop as the Desktop object.

    ·µ»Ø×ÀÃæ¶ÔÏó

    DomainName

    Returns the name of the domain to which the current computer belongs.

    ·µ»Ø±¾»úËùÊôÓòµÄÃû×Ö

    Exists (inherited from Common)

    Tells whether an object exists in the system.

    ¼ìÑé¶ÔÏóÊÇ·ñ³öÏÖ

    FullName (inherited from Common)

    Specifies the full name that uniquely identifies the object in TestComplete.

    Ϊ¶ÔÏóÔÚTCÖÐÖ¸¶¨¶ÀÒ»ÎÞ¶þµÄ¹ØÁªÃû³Æ

    HostName

    The name of the current computer.

    ±¾µØ¼ÆËã»úÃû

    Id (inherited from Common)

    Returns ID of the current object.

    µ±Ç°¶ÔÏóID

    MappedName (inherited from Common)

    Returns the custom name that is mapped to the original name of the current object, as a string.

    ·µ»ØÓ³ÉäÃû³Æ

    MemUsage

    Returns the integral size of memory occupied by the processes which are children of the sys object.

    ·µ»Ø½ø³ÌÕ¼ÓеĽø³Ì´óС

    Name (inherited from Common)

    Returns the name of the object as a string.

    ·µ»Ø¶ÔÏóÃû³Æ

    OleObject

    Returns an OLE object specified by name.

    ·µ»ØOLE¶ÔÏó

    OSInfo

    Returns the information on the currently installed operating system as OSInfo object.

    ·µ»Øµ±Ç°°²×°ÏµÍ³µÄÐÅÏ¢

    Parent (inherited from Common)

    Returns the parent object of the current one.

    ·µ»Øµ±Ç°¶ÔÏóµÄ¸¸¶ÔÏó

    UserName

    The name of the user under whose account you are currently working.

    ·µ»Øµ±Ç°Óû§Ãû³Æ

    Sys Methods

    Sys MethodsSys Methods

    Name

    Descr¨©ption

    Child (inherited from Common)

    Returns one child object by its index.

    ͨ¹ýIndex·µ»Ø×Ó¶ÔÏó

    Find (inherited from Common)

    Returns an object by the values of the specified properties.

    ͨ¹ýÖ¸¶¨ÊôÐÔÖµ·µ»Ø¶ÔÏó

    FindAll (inherited from Common)

    Returns an array of objects by the values of the specified properties.

    ͨ¹ýÖ¸¶¨ÊôÐÔÖµ·µ»Ø¶ÔÏóÊý×é

    FindAllChildren (inherited from Common)

    Returns an array of child objects by the specified property values.

    ͨ¹ýÖ¸¶¨ÊôÐÔÖµ·µ»Ø×Ó¶ÔÏóÊý×é

    FindChild (inherited from Common)

    Returns a child object by the specified property values.

    ͨ¹ýÖ¸¶¨ÊôÐÔÖµ·µ»Ø×Ó¶ÔÏó

    FindId (inherited from Common)

    Returns an object by its ID.

    ͨ¹ýID·µ»Ø¶ÔÏó

    HighlightObject

    Highlights a visible onscreen object with a flashing color rectangle.

    ¶ÔÏó¸ßÁÁ

    Keys

    Simulates one or several key presses.

    Ä£ÄâÊäÈë

    ObjectFromPoint

    Returns the visual object that contains the pixel with the specified coordinates.

    ·µ»ØÖ¸¶¨×ø±êµÄ¶ÔÏóͼÏñ

    Process

    Returns a ²é¿´(891) ÆÀÂÛ(0) ÊÕ²Ø ·ÖÏí ¹ÜÀí

  • ÍƼö-Ò»¿î´úÂë±à¼­Æ÷ nodepad++

    2008-05-21 17:53:43

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    Óï·¨¸ßÁÁ¶ÈÏÔʾ¼°Óï·¨ÕÛµþ¹¦ÄÜ
    Ö§³ÖµÄ³ÌʽÓïÑÔ£º C, C++ , Java , C#, XML, HTML, PHP, Javascr¨©pt , RC resource file, makefile, ASCII art file (extension .nfo£© , doxygen, ini file, batch file, ASP , VB/VBS source files , SQL , Objective-C , CSS, Pascal, Perl, Python, Lua, TCL, Assembler, Ruby, Lisp, Scheme, Properties, Diff, Smalltalk, Postscr¨©pt ¼° VHDL.

    ´òÓ¡Ëù¼û¼´ËùµÃ(WYSIWYG) £¬Èç¹ûÄãÓвÊÉ«´òÓ¡»ú£¬Äã¿ÉÒÔ°ÑÄãµÄԭʼÂëÒÔ¶àÖÖÑÕÉ«´òÓ¡³öÀ´¡£

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  • ÕûÀíµÄ²âÊÔÎÊÌâÌáÎʵ¥(²âÊԼƻ®Æª)

    2008-05-19 12:05:18

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    3£©  »î¶¯¶¨ÒåÁ˽ÇÉ«Ó¦¸Ã½øÐеŤ×÷£¬Ã÷È·Á˲»Í¬µÄ½ÇÉ«µÄÈËÔ±¸Ã¸Éʲô£¬ÈçºÎÈ¥¸ÉµÄÎÊÌ⣬±ÜÃâÁ˹¤×÷µÄÖصþºÍ»ìÂÒ¡£

    4£©  ΧÈÆ×ÅÁ÷³Ì£¬½ÇÉ«£¬»î¶¯£¬RUPÓÖ¸ü½øÒ»²½µÄÏêϸµØ¶¨ÒåÁ˻ÖÐÓõ½µÄ¹¤¼þ£¬¹¤¾ß£¬¹¤×÷Ö¸Äϵȵȣ¬ÕâЩ¶¼¸üºÃµÄ±£Ö¤ÁËÈí¼þ¿ª·¢»î¶¯ÕýÈ·£¬ÓÐÌõ²»ÎɵĿªÕ¹¡£

     µ«ÊÇRUP×÷ΪÈí¼þ¿ª·¢¹ý³ÌµÄÖ¸µ¼·½·¨ÂÛ£¬ÆäÖжÔÓÚÈí¼þ¿ª·¢µÄ¹ý³ÌµÄÖ§³ÖÊǺÜÈ«ÃæµÄ£¬µ«ÊǶÔÓÚÈí¼þ²âÊÔ²¿·ÖµÄ˵Ã÷Ïà¶ÔÀ´ËµÊÇÓÐЩ¼òªµÄ£¬ÓÈÆäÊÇÔÚµ±½ñÈí¼þ²âÊÔÀíÂÛ֪ʶÈÕÐÂÔÂÒìµÄÇé¿öÏ£¬RUPµÄÈí¼þ²âÊÔ²¿·ÖµÄÀíÂÛ֪ʶÒѾ­²»ÄܺܺõÄÖ¸µ¼Èí¼þ²âÊÔ¹¤×÷µÄ¿ªÕ¹£¬ËùÒÔUMLÈí¼þ¹¤×÷×éÖ¯¸ù¾ÝRUPµÄÖ¸µ¼Ë¼ÏëºÍºËÐĸÅÄ°ÑÈí¼þ²âÊÔ²¿·Öµ¥¶À°þÀë³öRUP¶ø½¨Á¢ÁËÒ»¸ö¡°Í³Ò»²âÊÔ¹ý³Ì¡±µÄ¿ò¼Ü¡£ÎÒÔÚÍøÉÏ¿´µ½ÁËÕâ¸ö¿ò¼Ü£¬¸Ð¾õÆäÄÚÈÝ»¹ÊǹýÓÚ¿Õ·º£¬¶Ôʵ¼Ê¹¤×÷µÄÖ¸µ¼ÒâÒå²»ÊǺܴó£¬ËùÒÔÔÚÕâÀïÎÒÏëͨ¹ýÊÕ¼¯ÍøÉϲµÔÓµÄ×ÊÁÏ£¬½áºÏʵ¼Ê¹¤×÷¾­Ñ飬°ÑÕâ¸ö¿ò¼Ü·áÂúÆðÀ´£¬Ê¹Èí¼þ²âÊÔÀíÂÛ¿ÉÒÔ¸üºÃµÄÖ¸µ¼Êµ¼ù¹¤×÷¡£

     

  • TestcompleteÖÐÑ¡ÖÐtreeviewÖÐcheckboxµÄ·½·¨

    2008-03-17 02:41:33

    ·¢ÏÖ¶ÔTreeViewÖеÄcheckboxµÄ¼ÖƵĽű¾ÔڻطŹý³ÌÖУ¬½Å±¾ÊÇÎÞЧµÄ£¬ÎÞ·¨Ñ¡Öнڵ㡣ÏÖ±àдº¯Êý½â¾ö´ËÎÊÌâ¡£
    'º¯Êý
     Sub ClickCheckBox(tree, itemName) 
       Set item = tree.wItems.Item(itemName)
       x = item.TextBounds.Left - item.TextBounds.Height / 2
       y = item.TextBounds.Top + item.TextBounds.Height / 2
       Call tree.Click(x, y)
      End Sub

    Sub Test1
      Dim w1
      Set w1 = Sys.Process("WindowsApplication3").Form1.WinFormsObject("treeView1")
     Call ClickCheckBox(w1, "|½Úµã2|½Úµã3")
    End Sub 

  • blogÒª°á¼ÒÁË£¬¸Ð¾õ51µÄblogʹÓÃÆðÀ´²»ÊǺܷ½±ã£¬ÌرðÊÇÎÄÕÂûÓÐÕÛÒ³¡£

    2008-03-13 23:39:57

    blogÒª°á¼ÒÁË£¬¸Ð¾õ51µÄblogʹÓÃÆðÀ´²»ÊǺܷ½±ã£¬ÌرðÊÇÎÄÕÂûÓÐÕÛÒ³¡£
  • C#µÄ×Ö·û´®³£ÓõIJÙ×÷·½·¨

    2008-03-13 17:36:22

    ×Ö·û´®µÄÓ÷¨:
    1)½ØÈ¡×Ö·û´®
    ʹÓÃsubstring·½·¨,¶ø¸Ã·½·¨ÔÚc#ÖÐÓÐÁ½¸öÖØÔغ¯Êý:substring(²ÎÊý),substring(²ÎÊý1,²ÎÊý2),Ó÷¨ÈçÏÂ:
    string A ="I'm a string";
    sting B=A.substring(1);
    sting C=A.substring(1,6);
    ÆäÖд«ÈëµÄ²ÎÊý1Ϊ×Ö·û´®µÄÆðʼλÖÃ,×Ö·û×Ó´®B½«½ØÈ¡×Ö·û´®AµÄµÚ2¸ö×Ö·ûÖ®ºóËùÓеÄ×Ö·û.
    ×Ö·û×Ó´®C½«½ØÈ¡×Ö·û´®AµÄµÚ2¸ö×Ö·ûÖ®ºóµÄ³¤¶ÈΪ6µÄ×Ö·û´®.
    ²ÎÊý±ØÐë´óÓÚµÈÓÚ0,Èç¹ûСÓÚ0½«Å׳öArgumentOutOfRangeÒì³£.
    2)×Ö·û´®×ª»¯Îª×Ö·ûÊý×é
    Ê×ÏÈ,stringÀàÐͱäÁ¿¿ÉÒÔ¿´³ÉΪchar±äÁ¿µÄÖ»¶ÁÊý×é,ÕâÑù¾Í¿ÉÒÔʹÓÃÈçÏÂÓï·¨·ÃÎÊÿ¸ö×Ö·û:
    string A = "i'm a string"
    char B =A[1];
    ¶øÒªÊÇ°Ñ×Ö·û´®±äΪ¿ÉдµÄcharÊý×é,¿ÉÒÔʹÓÃTocharArray()·½·¨:
    char [] = A.Tochararray();
    ʹÓÃB.Length»ñÈ¡×Ö·û´®µÄ³¤¶È.
    3)ת»»´óСд
    <string>.ToLower() ת»»³ÉСд
    <string>.ToUpper() ת»»³É´óд
    4)ɾ³ý×Ö·û´®ÖֵĿոñ»òÕßÖ¸¶¨µÄ×Ö·û
     É¾³ý×Ö·û´®Ç°ºóµÄ¿Õ¸ñ:
    <string>.Trim()
    ɾ³ýÖ¸¶¨µÄ×Ö·û:
    Ê×ÏÈÀûÓÃcharÊý×éÖ¸¶¨Ìض¨×Ö·û
    char[] C ={' ','e',}
    <string>.Trim(C)
    Ò²¿ÉÒÔʹÓÃTrimstart(),TrimEnd()·Ö±ðÈ¥³ýÇ°ºóµÄ¿Õ¸ñ»òÕßÖ¸¶¨µÄ×Ö·û
    5)ÔÚ×Ö·û´®Ç°ºóÌí¼Ó¿Õ¸ñ»òÕßÖ¸¶¨µÄ×Ö·û
    <string>.PadLeft(²ÎÊý) <string>.PadRight(²ÎÊý)  ²ÎÊýΪÌí¼Ó¿Õ¸ñºó×Ö·û´®µÄ³¤¶È
    <string>.PadLeft(²ÎÊý1,²ÎÊý2) ²ÎÊý1Ϊʹ×Ö·û´®´ïµ½µÄ³¤¶È,²ÎÊý2Ϊָ¶¨Ìí¼ÓµÄ×Ö·û.
    6)indexof()µÄÓ÷¨
    IndexOf()
    ²éÕÒ×Ö´®ÖÐÖ¸¶¨×Ö·û»ò×Ö´®Ê״γöÏÖµÄλÖÃ,·µ»ØÊ×Ë÷ÒýÖµ£¬È磺
    str1.IndexOf("×Ö")£» //²éÕÒ¡°×Ö¡±ÔÚstr1ÖеÄË÷ÒýÖµ£¨Î»Öã©
    str1.IndexOf("×Ö´®")£»//²éÕÒ¡°×Ö´®¡±µÄµÚÒ»¸ö×Ö·ûÔÚstr1ÖеÄË÷ÒýÖµ£¨Î»Öã©
    str1.IndexOf("×Ö",start,end)£»//´Óstr1µÚstart+1¸ö×Ö·ûÆ𣬲éÕÒend¸ö×Ö·û£¬²éÕÒ¡°×Ö¡±ÔÚ×Ö·û´®STR1ÖеÄλÖÃ[´ÓµÚÒ»¸ö×Ö·ûËãÆð]×¢Òâ:start+end²»ÄÜ´óÓÚstr1µÄ³¤¶È
    7)insert()µÄÓ÷¨
    <string>.insert(²ÎÊý1,²ÎÊý2)
    ²ÎÊý1Ϊ²åÈë×Ó×Ö·û´®µÄÆäʵλÖÃ,²ÎÊý2ΪҪ²åÈëµÄ×Ó×Ö·û´®
    8)±È½Ï×Ö·û´®µÄ´óС
    Compare(str1,str2)¡ª¡ª±È½ÏÁ½¸ö×Ö·û´® str1,str2µÄ´óС£¬Èç¹û´óÓÚ·µ»ØÕýÊý£¬µÈÓÚ·µ»Ø0£¬Ð¡ÓÚ·µ»Ø¸ºÊý
    9)Ìæ»»Ö¸¶¨µÄ×Ö·û´®
    String.Replace(²ÎÊý1,²ÎÊý2)¡ª¡ªÓÃÖ¸¶¨µÄ×Ö·ûÌæ»»×Ö·û´®ÖеÄÖ¸¶¨×Ö·û
    ×Ö·û´®µÄ´¦Àí·½·¨»¹Óкܶà,ÕâÀï¾Í²»Ò»Ò»ÁоÙÁË,ÒÔºóÓõ½ÔÚÂýÂýѧϰ.

    using System;

    namespace testStringApp
    {
     /// <summary>
     /// Class1 µÄժҪ˵Ã÷¡£
     /// </summary>
     class Class1
     {
      /// <summary>
      /// Ó¦ÓóÌÐòµÄÖ÷Èë¿Úµã¡£
      /// </summary>
      [STAThread]
      static void Main(string[] args)
      {
       //
       // TODO: ÔÚ´Ë´¦Ìí¼Ó´úÂëÒÔÆô¶¯Ó¦ÓóÌÐò
       //
       //Ö±½Ó¸ø×Ö·û´®¸³Öµ
       string strA = "This is a string";
       Console.WriteLine ("strA: "+strA);
       //ToCharArray·½·¨£¬½¨Á¢CharÊý×飻IndexOf·½·¨£¬²éÕÒ×Ó´®Î»ÖÃ
       char[] charArray = strA.ToCharArray(0,strA.IndexOf ("string"));
       //ʹÓÃnew¹Ø¼ü×Ö³õʼ»¯×Ö·û´®£¬×÷ÓõÈͬÓÚcharArray.ToString()
       string strB = new string (charArray);
       Console.WriteLine ("strB: "+strB);
       //Insert·½·¨£¬²åÈë×Ó´®
       string strC = strA.Insert (strA.IndexOf ("string"),"another ");
       Console.WriteLine ("strC: "+strC);
       //£«²Ù×÷·û£¬Á¬½Ó×Ö·û´®
       string strD = strA + strB;
       Console.WriteLine ("strD: "+strD);
       //String.Concat·½·¨£¬Á´½Ó×Ö·û´®£¬Ï൱ÓÚ+
       //String.Equals·½·¨£¬±È½Ï×Ö·û´®£¬Ï൱ÓÚ==
       if (String.Equals (strD,String.Concat (strA,strB)))
       {
        if (strD == strA+strB)
        {
         Console.WriteLine ("String.ConcatµÈͬÓÚ+\n£¬System.EqualsµÈͬÓÚ==");
        }
       }
       //Trim·½·¨£¬É¾³ý×Ö·û´®ÖеĿոñ»òÆäËü×Ö·û
       string strE = strA.Trim();
       Console.WriteLine ("strE: "+strE);
       //ʹÓÃ\ÏÔʾÒýºÅ"ºÍ·´Ð±Ïß\
       string strF = "C:\\Windows\\System32\\";
       Console.WriteLine ("\"" + strF + "\"");
       //ʹÓÃ@ÏÔʾÒýºÅ"ºÍ·´Ð±Ïß\
       string strG = @"C:\Windows\System32\";
       Console.WriteLine (@"""" + strG + @"""");
       //stringת»»ÎªintÐÍ
       string strH = "12345";
       int theInt = int.Parse (strH);
       Console.WriteLine ("¿Æѧ¼ÆÊýÏÔʾÕûÊý{0:E}",theInt);
       Console.WriteLine ("Ê®Áù½øÖÆÏÔʾÕûÊý{0:X}",theInt);
       //stringת»»ÎªfloatÐÍ
       string strI = "123.45";
       float theFloat = float.Parse (strI);
       Console.WriteLine ("ÏÔʾ¸¡µãÊý£¬Ö¸¶¨Ð¡ÊýλÊý{0:F4}",theFloat);
                Console.ReadLine();
      }
     }
    }

  • C#µÄʼþ»úÖÆ

    2008-03-12 14:29:57

    /*
     * ÎÒÒѾ­ÔÚ¸ÃÀýÖаѴ´½¨,·¢ËÍ,´¥·¢,´¦ÀíʼþµÄ¹ý³ÌÓÃÒ»²½²½µÄ²½ÖèÃèÊö³öÀ´ÁË,²»¹ýÏÖÔÚ»¹ÊÇÃÔÃÔºýºýµÄ,Óв»Ã÷°×µÄµØ·½Çë¼ûÁÂ.
     */


    using System;
    //ÃüÃû¿Õ¼ä
    namespace testEventApp
    {
    /*µÚÒ»²½£º´´½¨Ò»¸öίÍÐ*/

        //¶¨ÒåίÍÐClass2_Event_Handler
        public delegate void Class2_Event_Handler(object sender, string strEventArg);

     /// <summary>
     /// Class1 µÄժҪ˵Ã÷¡£
     /// </summary>
    /*=======================================================================
        ʼþ½ÓÊÕ·½Àà
    =======================================================================*/

     
        //¶¨ÒåÀàClass1
     class Class1
     {
            //´´½¨ÀàClass1µÄĬÈϹ¹ÔìÆ÷
      public Class1()
      {
       Console.WriteLine ("Class1>>>´´½¨Ò»¸öClass1¶ÔÏó£¡");
      }
    /*µÚËIJ½£º±àдʼþ´¦Àíº¯Êý£¬¸Ãº¯ÊýÒª¾ßÓÐÓëµÚÒ»²½Öд´½¨µÄίÍÐÏàͬµÄÇ©Ãû
     */
            private void On_Class2Event(object sender, string strEventArg)
            { //Class2ÖÐʼþ·¢ÉúʱµÄ´¦Àíº¯Êý
                Console.WriteLine("Class1>>>ÊÕµ½Class2ÖеÄʼþ£º" + strEventArg);
                if (strEventArg == "exit")
                {
                    Class2 senderRef = (Class2)sender;
                    //È¡Ïûʼþ´¦Àíº¯ÊýÓëClass2ÖÐʼþµÄ¹ØÁª
                    senderRef.Class2_Event -= new Class2_Event_Handler(this.On_Class2Event);
                    Console.WriteLine("Class1>>>²»ÔÙ½ÓÊÕClass2µÄʼþ£¡ÊäÈëexitÍ˳ö£¡");
                }
            }
      /// <summary>
      /// Ó¦ÓóÌÐòµÄÖ÷Èë¿Úµã¡£
      /// </summary>
      [STAThread]

      static void Main(string[] args)
      {
       //
       // TODO: ÔÚ´Ë´¦Ìí¼Ó´úÂëÒÔÆô¶¯Ó¦ÓóÌÐò
       //
       Class1 aClass1 = new Class1 ();
       Class2 aClass2 = new Class2 (); //´´½¨Ò»¸öClass2¶ÔÏó
    /*µÚÎå²½£º½«µÚËIJ½ÖбàдµÄʼþ´¦Àíº¯ÊýÓëʼþ½¨Á¢¹ØÁª£¨Ò²¾ÍÊÇÀûÓÃʼþ´¦Àíº¯ÊýÉú³ÉµÚÒ»²½Öд´½¨µÄίÍеÄίÍÐʵÀý£©
     */
       //½«Ê¼þ´¦Àíº¯ÊýÓëClass2ÖеÄʼþ¹ØÁª
       aClass2.Class2_Event += new Class2_Event_Handler(aClass1.On_Class2Event );
       //µ÷ÓÃClass2Öеķ½·¨£¬µÈ´ýÆä´¥·¢Ê¼þ
       aClass2.Class2_Event_Riser ();
      }

      
     }
        /*=====================================================================
            ʼþ·¢ËÍ·½Àà
        =====================================================================*/
        //¶¨ÒåÀàClass2
     class Class2
     {
            /*¶¨ÒåÀàClass2µÄ¹¹ÔìÆ÷*/
      public Class2()
      {
       Console.WriteLine ("Class2>>>´´½¨Ò»¸öClass2¶ÔÏó£¡");
      }

    /*µÚ¶þ²½£ºÀûÓõÚÒ»²½Öд´½¨µÄίÍд´½¨Ê¼þ£¬ÕâÑùίÍкÍʱ¼äÖ®¼ä¾Í½¨Á¢Á˹ØÁª£¨.NETÀà¿âÖеĺܶàʼþ¶¼ÊÇÒѾ­¶©Öƺõģ¬ËùÒÔËüÃǶ¼ÓÐÏàÓ¦µÄ
      ίÍУ¬ÔÚ±àд¹ØÁªÊ±¼ä´¦Àí³ÌÐò£¨Ò²¾ÍÊÇÓÐʼþ·¢ÉúʱÎÒÃÇÒªÖ´Ðеķ½·¨µÄʱºò£©ÎÒÃÇÐèÒªºÍÕâ¸öίÍÐÏàͬµÄÇ©Ãû¡£*/
      //ÀûÓÃdelegate£¬¶¨ÒåÒ»¸öʼþ
            //ÔÚÀàÖÐÉùÃ÷Ò»¸öʼþµÄ¸ñʽ£º public event ίÍÐÃû ʼþÃû
      public event Class2_Event_Handler Class2_Event;

    /*µÚÈý²½£º´´½¨¿ÉÒÔ´¥·¢Ê¼þµÄ·½·¨*/

      //Ò»¸ö¿ÉÒÔ´¥·¢Ê¼þµÄ·½·¨
      public void Class2_Event_Riser()
      {
       string strRead;
       while(true)
       {
        Console.Write ("Class2>>>");
        strRead = Console.ReadLine ();

        if ( Class2_Event!=null )//µ±Ê¼þ´¦Àíº¯Êý´æÔÚʱ
        {
         Console.WriteLine ("Class2>>>·¢ËÍʼþ£º"+strRead);
         Class2_Event(this, strRead);//´¥·¢delegateÖеÄʼþ´¦Àíº¯Êý
        }
        else if (strRead == "exit")
        {
         System.Environment .Exit (-1);    
        }
       }
      }
     }
    }

  • ¹ØÓÚ²âÊԼƻ®µÄÎÊÌâÎÊ´ð

    2008-03-10 17:25:58

    1. ʲôÊDzâÊԼƻ®£¿

    »Ø´ð£º


    ²âÊԼƻ®

    ²âÊԼƻ®°üº¬ÏîÄ¿·¶Î§ÄڵIJâÊÔÄ¿µÄºÍ²âÊÔÄ¿±êµÄÓйØÐÅÏ¢¡£´ËÍ⣬²âÊԼƻ®È·¶¨ÁËʵʩºÍÖ´ÐвâÊÔʱʹÓõIJßÂÔ£¬Í¬Ê±»¹È·¶¨ÁËËùÐè×ÊÔ´¡£¶¨ÒåÒ»¸ö²âÊÔÏîÄ¿µÄ¹ý³Ì£¬ÒÔ±ãÄܹ»ÕýÈ·µÄ¶ÈÁ¿ºÍ¿ØÖƲâÊÔ

     

    2. ²âÊԼƻ®ÔÚʲôʱºò´´½¨Îª×î¼Ñ£¿

    »Ø´ð£ºÔÚÏîÄ¿µÄÒ»¿ªÊ¼¾ÍÓ¦¸Ã´´½¨×î³õµÄ²âÊԼƻ®£¬¸Ã¼Æ»®³ÉΪ¡°Ö÷²âÊԼƻ®¡±¡£Ëæ×Åÿ´Îµü´úµÄ³ï»®£¬½«´´½¨Ò»¸ö»ò¶à¸ö¸ü¾«È·µÄ¡°µü´ú²âÊԼƻ®¡±£¬ÆäÖаüº¬ÓëÖ¸¶¨µü´úÓйصĸü¾«È·µÄÊý¾Ý¡£ËùÓвâÊԼƻ®ÄÚÈݶ¼½¨Á¢ÔÚ²âÊԼƻ®Ä£°æµÄ»ù´¡ÉÏ¡£ÉÏÃæÒ»¶Î»°¿ÉÄÜÄÑÓÚÀí½â£¬ÏÂÃæÒÔ¡°ÆÙ²¼Ê½¡±¿ª·¢Ä£Ê½ÎªÀýÀ´½²½âһϾßÌåÇé¿ö£º

    ÈçÉÏͼËùʾ£¬¶ÔÓÚÈ·Èϼ°ÏµÍ³²âÊÔ£¬ÔÚÐèÇó½×¶Î¾Í¿ÉÒÔ½øÐС¶²âÊԼƻ®¡·µÄ±àд£¬ÔÚÖ´ÐвâÊԼƻ®Ö®Ç°µÄ¼¸¸ö½×¶Î¶¼ÊÇÔÚ¶Ô²âÊԼƻ®½øÐÐÍêÉÆÉè¼ÆµÄ¹ý³Ì¡£

    3. ²âÊԼƻ®µÄ×÷ÓÃÊÇʲô£¿

    »Ø´ð£º1£© Ìá¸ß²âÊÔ¹¤×÷µÄЧÂÊÒÔ¼°×¼È·ÐÔ£¬ÈòâÊÔ¹¤×÷ÓÐÌõÀí£¬Óмƻ®µÄ½øÐУ¬±ÜÃâ²âÊԵġ°Ê¼þÇý¶¯¡±

          2£© ʹ²âÊÔ¹¤×÷ÓëÕû¸ö¿ª·¢»î¶¯¸üºÃµÄÈÚºÏ

          3£© ¹æ±Ü·çÏÕ£¬Ê¹×ÊÔ´ºÍ±ä¸üÊÂÏÈ×÷Ϊһ¸ö¿É¿ØÖƵķçÏÕ¡£

    4. ²âÊԼƻ®ÓÉÄÄЩ²¿·Ö×é³É£¬¸÷ÓÐʲô×÷Óã¿

    »Ø´ð£º¡¶²âÊԼƻ®¡·×÷Ϊһ¸ö²âÊԽ׶εÄÖØÒªÎĵµ£¬¸÷¸ö¹«Ë¾¸ù¾Ýʵ¼ÊÇé¿öµÄ²»Í¬»á¶¨ÖÆ·ûºÏ×Ô¼ºÇé¿öµÄÄ£°æ£¬ÏÂÃæÎÒ¸ø³öÁËÒ»·ÝÔÚRUPÖж¨ÒåµÄ¡¶²âÊԼƻ®¡·Ä£°æ£¬´ËÄ£°æ¿ÉÒÔ×Ô¼º¸ù¾ÝÇé¿ö¶¨ÖÆ¡£

    ¡¶²âÊԼƻ®¡·Ä£°æ ¼û¸½¼þ

    5. Öƶ¨²âÊԼƻ®ÓÐÄÄЩ²½Ö裿

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  • C#µÄ×°ÏäºÍ²ðÏä

    2008-03-07 10:21:36

    C#µÄ×°ÏäºÍ²ðÏä

    using System;

    namespace testBoxingApp
    {
     /// <summary>
     /// Class1 µÄժҪ˵Ã÷¡£
     /// </summary>
     class Class1
     {
      /// <summary>
      /// Ó¦ÓóÌÐòµÄÖ÷Èë¿Úµã¡£
      /// </summary>
      [STAThread]
      static void Main(string[] args)
      {
       //
       // TODO: ÔÚ´Ë´¦Ìí¼Ó´úÂëÒÔÆô¶¯Ó¦ÓóÌÐò
       //
                /*
                 * ÔÚÀí½â×°ÏäºÍ²ðÏäµÄ¸ÅÄî֮ǰ£¬ÏÖÁ˽âÒ»ÏÂÓйصĻù±¾¸ÅÄ
                 * 1£©ÔÚ.netÖеÄͨÓÃÀàÐÍϵͳ£¨common type system£©ÖУ¬ËùÓеÄÀàÐͶ¼ÊǶÔÏ󣬶¼ÊÇÅÉÉú×Ôsystem.object¡£
                 * 2£©CTSÖ§³ÖÁ½×éÀàÐÍ£ºÖµÀàÐͺÍÒýÓÃÀàÐÍ¡£ÖµÀàÐ͵ıäÁ¿°üº¬Êµ¼ÊÊý¾Ý£¬»áÔÚÄÚ´æÖзÖÅä¿Õ¼ä£»ÒýÓÃÀàÐ͵ıäÁ¿ÀàÐÍÖ¸Õ룬¶øûÓÐÔÚ
                 * ÄÚ´æÖзÖÅä¿Õ¼ä¡£
                 * 3£©×°Ï䣺½«ÖµÀàÐÍת»»³ÉÒýÓÃÀàÐ͵Ĺý³Ì£¨Òþʽת»»£©
                 * 4£©²ðÏ䣺½«ÒýÓÃÀàÐÍת»»³ÉÖµÀàÐ͵Ĺý³Ì£¨ÏÔʾת»»£©
                 ÓÉÓÚÔÚC#2.0ÖÐÒýÈëÁË·ºÐ͵ĸÅÄȡ´úÁË×°ÏäºÍ²ðÏ䣬ËùÒÔÕâÀï¾Í²»ÔÙ׸ÊöÁË¡£
                 */
       short i = 1;
       object ¨­bjectOne = i; //×°Ï䣬ÒþʽÀàÐÍת»»
       Console.WriteLine ("{0} Boxing to object:{1}",ObjectOne.GetType(),ObjectOne);
       short j;    
       j = (short)ObjectOne; //²ðÏ䣬ÏÔʾÀàÐÍת»»
       Console.WriteLine ("object Unboxing to short :{0}",j);
       
       try      //´íÎóµÄ²ðÏä
       {
        int k;
        k = (int)ObjectOne;
        Console.WriteLine ("object Unboxing to int: {0}",k);
       }
       catch(InvalidCastException ex){
        Console.WriteLine ( ex.Message );
       }

       object ¨­bjectTwo = new Class2 ();
       try      //´íÎóµÄ²ðÏä
       {
        short m;
        m = (short)ObjectTwo;
        Console.WriteLine ("object Unboxing to short :{0}",m);
       }
       catch(InvalidCastException ex)
       {
        Console.WriteLine ( ex.Message );
       }

       Class2 aRef;   //Class2µÄÒ»¸öÒýÓñäÁ¿
       aRef = (Class2) ObjectTwo;
       Console.WriteLine (aRef.s );
      }
     }

     class Class2
     {
      public short s;
      public Class2()
      {
       Console.WriteLine ("A Class2 Object!");
       s = 10;
      }
     }
    }

  • ΪʲôÐÔÄܲâÊÔÒª×Ô¶¯»¯?

    2008-03-06 17:04:21

    1)ÐÔÄܲâÊÔÖ÷Òª·ÖΪ¸ºÔزâÊÔºÍѹÁ¦²âÊÔ£¬ÕâÁ½ÖÖ²âÊÔ¶¼ÐèÒªÔÚ´óÓû§Á¿£¬´óÍÌÍÂÁ¿µÄÇé¿öϽøÐУ¬¶øʹÓô¿ÊÖ¹¤ºÜÄÑÄ£ÄâÕâÑùµÄ²âÊÔ»·¾³£¬¶ø×Ô¶¯»¯¹¤¾ß¿ÉÒÔ½â¾öÕâ¸öÎÊÌâ¡£
    2£©¶ÔÓÚÐÔÄܲâÊÔÖеIJ¢·¢²âÊÔ£¬ÊÖ¹¤²âÊÔÒ²ÊǺÜÄÑÄ£ÄâµÄ
    3£©¼ÙÈçÔÚÐÔÄܲâÊÔÖÐʹÓÃÊÖ¹¤µÄ·½Ê½½øÐУ¬ºÜÄѲ¶×½µ½²âÊÔ¹ý³ÌÖеÄÐÔÄÜÏà¹ØµÄÊý¾Ý£¬ÎÞ·¨¶ÔÐÔÄÜÖ¸±ê½øÐÐÁ¿»¯±È½Ï£¬ÎÞ·¨ÕÒµ½ÏµÍ³µÄÆ¿¾±ËùÔÚ¡£

  • C#µÄ³éÏóÀàºÍ·½·¨,ÖØÔØ,¸²¸Ç,Òþ²Ø

    2008-03-06 16:38:07

    µÚËÄÀý C#µÄ³éÏóÀàºÍ·½·¨,ÖØÔØ,¸²¸Ç,Òþ²Ø

     

    using System;

    namespace testClassApp
    {
       /// <summary>
       /// Class1 µÄժҪ˵Ã÷¡£
       /// </summary>
       class Class1
       {
           /// <summary>
           /// Ó¦ÓóÌÐòµÄÖ÷Èë¿Úµã¡£
           /// </summary>
           [STAThread]
           static void Main(string[] args)
           {
              //
              // TODO: ÔÚ´Ë´¦Ìí¼Ó´úÂëÒÔÆô¶¯Ó¦ÓóÌÐò
              //

              double len = 2.5;
              double wid = 3.0;
              double rad = 4.1;
              Rectangle aRect = new Rectangle();
              aRect.length = len;
              aRect.width = wid;
              Circle aCirc = new Circle (rad);
              Console.WriteLine ("Area of Rect is:{0}",aRect.Area ());
              Console.WriteLine ("Area of Circ is:{0}",aCirc.Area ());
           }
       }

       abstract class Shape             //³éÏó»ùÀ࣬²»¿ÉʵÀý»¯
       
    /* 1)ÉùÃ÷Ò»¸ö³éÏóÀàʹÓÃabstract¹Ø¼ü×Ö
         * 2)Ö»Òª°üº¬³éÏó·½·¨µÄÀà¾ÍÊdzéÏóÀà(ÄÄÅÂÖ»ÓÐÒ»¸ö),µ±Ò»¸ö³éÏóÀàÖÐËùÓеķ½·¨¶¼ÊdzéÏóʱ£¬ÎÒÃǾͿÉÒÔ¶¨Òå³É½Ó¿Ú
         * Ò»¸öÀà¿ÉÒÔ°üº¬Ò»¸ö»ò¶à¸ö³éÏó·½·¨
         * 3)³éÏóÀàÖпÉÒÔ´æÔڷdzéÏóµÄ·½·¨(·½·¨¿ÉÒÔÓоßÌåµÄʵÏÖ)
         * 4)³éÏóÀ಻Äܱ»ÊµÀý»¯
         * 5)ʵÏÖ³éÏóÀàÓÃ":",ʵÏÖ³éÏó·½·¨ÓÃoverride¹Ø¼ü×Ö
         * 6)³éÏóÀà¿ÉÒÔ±»³éÏóÀàËù¼Ì³Ð£¬½á¹ûÈÔÊdzéÏóÀà
         * 7)³éÏó·½·¨±»ÊµÏֺ󣬲»Äܸü¸ÄÐÞÊηû
        */
        {
           public const double pi=3.14;  //³£Á¿
           protected double x, y;        //˽ÓУ¬¿É¼Ì³Ð±äÁ¿
           
    //¹¹Ô캯Êý
            /*
             1£©¶ÔÏó×î³õ¶Ô¶ÔÏó½øÐÐʵÀý»¯µÄ¹ý³Ì½Ð×ö¹¹Ôì½×¶Î£¬Õâ¸ö¹ý³Ì¾ÍÊÇÓɹ¹Ô캯ÊýÍê³ÉµÄ£¬¹¹Ô캯Êý¾ÍÊÇÓÃÓÚ³õʼ»¯Êý¾ÝµÄº¯Êý¡£
             2£©ËùÓеĶÔÏó£¨Àࣩ¶¼ÓÐÒ»¸öĬÈϵĹ¹Ô캯Êý£¬Ã»ÓвÎÊý£¬ÓëÀàͬÃû£¬µ«Ò»¸öÀà¿ÉÒÔ°üº¬¼¸¸ö´ø²ÎÊýµÄ¹¹Ô캯Êý
            ³ÆΪ·ÇĬÈϵĹ¹Ô캯Êý¡£
             3£©¹¹Ô캯ÊýÓÃnew¹Ø¼ü×ÖÀ´µ÷Óã¬ÀýÈ磺
             * µ÷ÓÃĬÈϹ¹Ô캯Êý£ºÀàÃûÀàµÄʵÀýÃû= new ÀàÃû£¨£©£»
             * µ÷Ó÷ÇĬÈϹ¹Ô캯Êý£ºÀàÃûÀàµÄʵÀýÃû= new ÀàÃû£¨²ÎÊý£©£»
             * 4£©¹¹Ô캯ÊýÓë×ֶΣ¬ÊôÐÔ£¬·½·¨Ò»Ñù£¬¿ÉÒÔʹ¹«¹²»òÕß˽ÓеÄ
             * 5£©¹¹Ô캯ÊýÖ»ÊÇÔÚ¶ÔÏó±»½¨Á¢Ê±µ÷Ó㬾ÍÊÇÒ»¾ä´úÂëÒ²²»Ð´»òûÓÐʵÏÖ¹¹Ô캯Êý£¬ÄÇôÕâ¸öÀàÒ²»á½¨Á¢£¬
             * Õâ¸öº¯ÊýÖ»ÊÇ˵ÔÚ¶ÔÏóÔÚ½¨Á¢µÄʱºò¸øÁËÒ»¸ö¸øÕâ¸ö¶ÔÏó³õʼÉèÖÃÖµµÄ»ú»á
             */
            public Shape()               //ĬÈϹ¹Ô캯Êý
           {
              x=y=0;
           }
           public Shape(double x,double y)  //´ø²ÎÊý¹¹Ô캯Êý
           {
              this.x = x;
              this.y = y;
           }
           public abstract double Area();   //³éÏó·½·¨£¬ÐèÖØÔØ
            /*
             * 1)ÉùÃ÷Ò»¸ö³éÏó·½·¨Ê¹ÓÃabstract¹Ø¼ü×Ö,³éÏó·½·¨Ö»°üº¬·½·¨¶¨Ò壬µ«Ã»ÓоßÌåʵÏֵķ½·¨£¬ÐèÒªÆä×ÓÀà»òÕß×ÓÀàµÄ×ÓÀàÀ´¾ßÌåʵÏÖ
             * 2)×ÓÀà¼Ì³Ð³éÏó¸¸Ààºó£¬¿ÉÒÔʹÓÃoverride¹Ø¼ü×Ö¸²¸Ç¸¸ÀàÖеijéÏó·½·¨£¬²¢×ö¾ßÌåµÄʵÏÖ¡£Ò²¿ÉÒÔ²»ÊµÏÖ³éÏó·½·¨£¬Áô¸øºó´úʵÏÖ£¬
             * Õâʱ×ÓÀàÈÔ¾ÉÊÇÒ»¸ö³éÏóÀ࣬±ØÐëÉùÃ÷Ϊabstract
             * 3)¼Ì³ÐµÄ³éÏó·½·¨²»¿ÉÒÔ±»Òþ²Ø
             */

        }

       class Rectangle: Shape
       {
           public Rectangle():base(){}
           public Rectangle(double x, double y): base(x,y){}//ʹÓûùÀ๹Ô캯Êý
           
    /*
             1) Òþʽµ÷ÓûùÀ๹Ô캯Êý:Èç¹ûûÓÐÃ÷È·Ö¸Ã÷base()( ¼´²»Ê¹ÓÃbase() ),×ÓÀà»á×Ô¶¯µ÷ÓûùÀàµÄĬÈϹ¹ÔìÆ÷
             2) ÏÔʾµ÷ÓÃ:ÉÏÃæµÄ¾ÍÊÇÏÔʾµ÷ÓÃ,ʹÓÃbase(²ÎÊý)
             */
            public override double Area()   //º¯Êý¸²¸Ç,×ÓÀà¼Ì³Ð³éÏó¸¸Ààºó£¬¿ÉÒÔʹÓÃoverride¹Ø¼ü×Ö¸²¸Ç¸¸ÀàÖеijéÏó·½·¨£¬²¢×ö¾ßÌåµÄʵÏÖ¡£
                //Ò²¿ÉÒÔ²»ÊµÏÖ³éÏó·½·¨£¬Áô¸øºó´úʵÏÖ£¬
           {
              return (x*y);
           }
           public double length   //ÊôÐÔ£º¾ØÐ㤶È
           {
              get
              {
                 return x;
              }
              set
              {
                 if (value>0){x = value;}
              }
           }
           public double width    //ÊôÐÔ£º¾ØÐοí¶È
           {
              get
              {
                 return y;
              }
              set
              {
                 if (value>0){y = value;}
              }
           }

       }

       class Ellipse: Shape
       {
           public Ellipse(double x, double y):base(x,y){}//ʹÓûùÀàShapeµÄ¹¹Ô캯Êý
           public override double Area() //º¯Êý¸²¸Ç
           {
              return pi*x*y;
           }
       }
       class Circle: Ellipse
       {
           public Circle(double r):base(r,0){}  //ʹÓûùÀàEllipseµÄ¹¹Ô캯Êý
           public override double Area() //º¯Êý¸²¸Ç
           {
              return pi*x*x;
           }
       }
           
       //Òþ²Ø£ºÔÚ×ÓÀàÖд´½¨Ó븸ÀàÖеķ½·¨¾ßÓÐÏàͬǩÃû£¨ÏàͬµÄ·½·¨Ãû£¬ÏàͬµÄ²ÎÊýÁбí-²ÎÊýÀàÐͺʹÎÐò£©µÄ·½·¨(¿ÉÒÔ´øÓÐ"virtual"»ò"override"¹Ø¼ü×Ö)¼´¿ÉʵÏÖ£¬µ«½¨ÒéʹÓÃ"new"¹Ø¼ü×Ö,ÒÔÃ÷È·µØÒþ²Ø¡£
              //Ö»ÄÜʹÓÃ"override"¹Ø¼ü×ÖÀ´¸²¸Ç(override)¸¸ÀàÖбê¼ÇΪ"virtual"¡¢"abstract"»ò"override"µÄ·½·¨,¶ø×ÓÀàÖбê¼ÇΪoverrideµÄ·½·¨£¬Ò²±ØÐëÊǸ¸ÀàÖбê¼ÇΪ"virtual"¡¢"abstract"»ò"override"µÄ·½·¨¡£
              //¸²¸Ç(override):±ØÐëʹÓÃoverride¹Ø¼ü×Ö£¬¿ÉÒÔ±»¸²¸ÇµÄ·½·¨°üÀ¨±ê¼ÇΪabstract,virtual,ºÍoverrideµÄ·½·¨£»
              //Òþ²Ø:ʹÓÃnew¹Ø¼ü×Ö£¬Ò²¿É²»Ê¹Óùؼü×Ö£¬¿ÉÒÔ±»Òþ²ØµÄ·½·¨°üÀ¨Ò»°ã·½·¨£¬ºÍ±ê¼ÇΪvirtual"»ò"override"µÄ·½·¨£»
              //ÖØÔØ(overload)£º²»ÐèÒªÈκÎÌØÊâµÄ¹Ø¼ü×Ö
              //¾²Ì¬·½·¨¿ÉÒÔ±»Òþ²Ø»òÖØÔØ
        /*ÖØÔØ,¸²¸Ç,Òþ²ØÖ®¼äµÄÇø±ð
         ÖØÔØ(overload)ÓÃÓÚͬһÀàÖеijÉÔ±º¯Êý,ÆäÌØÕ÷Ϊ:
         * 1)ÔÚͬһÀàÖÐ
         * 2)ÏàͬµÄº¯ÊýÃû
         * 3)²ÎÊý²»Í¬(°üÀ¨²ÎÊýÀàÐͲ»Í¬,»ò²ÎÊý¸öÊý²»Í¬,»òÁ½Õ߶¼²»Í¬,×¢Òâ:ºÍ·µ»Øֵû¹Øϵ)
         * 4)ºÍÊÇ·ñÐ麯ÊýÎÞ¹Ø
         ¸²¸Ç(override)ÊÇÖ¸ÅÉÉúÀຯÊý¸²¸Ç»ùÀຯÊý,ÆäÌØÕ÷Ϊ:
         * 1)²»Í¬µÄ·¶Î§(·Ö±ðλÓÚÅÉÉúÀàÓë»ùÀà)
         * 2)ÏàͬµÄº¯ÊýÃû³Æ
         * 3)²ÎÊýÏàͬ
         * 4)»ùÀຯÊý±ØÐëÊÇÐ麯Êý
         Òþ²Ø(hide)ÊÇÖ¸ÅÉÉúÀàµÄº¯ÊýÆÁ±ÎÁËÓëÆäͬÃûµÄ»ùÀຯÊý,ÆäÌØÕ÷Ϊ:
         * 1)²»Í¬µÄ·¶Î§(·Ö±ðλÓÚÅÉÉúÀàÓë»ùÀà)
         * 2)ÏàͬµÄº¯ÊýÃû
         (3)Èô²ÎÊý²»Í¬£¬»ùÀຯÊýÎÞvirtual¹Ø¼ü×Ö£¬»ùÀຯÊý½«»á±»Òþ²Ø¡££¨ÒòΪÅÉÉúÀàºÍ»ùÀ಻ÔÚͬһ·¶Î§£¬ËùÒÔÊÇÒþ²Ø¶ø²»ÊÇÖØÔØ£©£»
        £¨£©Èô²ÎÊý²»Í¬£¬»ùÀຯÊýÓÐvirtual¹Ø¼ü×Ö¡£»ùÀຯÊý½«»á±»Òþ²Ø¡££¨ÒòΪÅÉÉúÀàºÍ»ùÀ಻ÔÚͬһ·¶Î§£¬ËùÒÔÊÇÒþ²Ø¶ø²»ÊÇÖØÔØ£»ÒòΪ²ÎÊý²»Í¬£¬ËùÒÔÊÇÒþ²Ø¶ø²»ÊǸ²¸Ç£©£»
        £¨£©Èô²ÎÊýÏàͬ£¬»ùÀຯÊýÎÞvirtual¹Ø¼ü×Ö¡£»ùÀຯÊý½«»á±»Òþ²Ø¡££¨ÒòΪ»ùÀຯÊý²»ÊÇÐ麯Êý,ËùÒÔÊÇÒþ²Ø¶ø²»ÊǸ²¸Ç£©¡£
        £¨£©Èô²ÎÊýÏàͬ£¬»ùÀຯÊýÓÐvirtual¹Ø¼ü×Ö¡£Èç¹û»ùÀຯÊýÓжà¸öÖØÔØ°æ±¾£¬ÇÒÅÉÉúÀಢûÓÐÖØдËùÓеÄͬÃûÐ麯Êý,µ±ÔÚÅÉÉúÀàÖе÷Óú¯Êýʱ£¬»ùÀàÖÐδ±»ÖØдµÄÐ麯Êý½«±»Òþ²Ø¡££¨µ±È»£¬±»ÖØдµÄº¯Êý¾ÍÊǸ²¸ÇÁË£©¡£
    ×¢Òâ: Èç¹ûÏëÔÚÅÉÉúÀàÖе÷ÓûùÀàÖеı»Òþ²ØµÄº¯Êý£¬¿ÉÒÔÔÚÅÉÉúÀàÖÐÌîдÈçÏ´úÂ룺using Base::Fun2
         */


    }

  • C#µÄÀàÐÍת»»,ö¾Ù,½á¹¹

    2008-03-05 15:31:50

    ÏÂÃæµÄ´úÂëÊÇÈ¡×Ô<<c#100Àý>>,½²µÄÊÇc#ÖеÄÀàÐÍת»»,¸´ÔÓµÄÊý¾ÝÀàÐÍ(½á¹¹ºÍö¾Ù,Êý×éûÓн²),ÎÒÔÚ´úÂëÖмÓÈëÁËһЩ¹ØÓÚÕâЩ֪ʶµÄ×¢ÊÍ(²Î¿¼<<c#ÈëÞ­µä>>)

    using System;

    namespace CValueApp
    {
     /// <summary>
     /// Class1 µÄժҪ˵Ã÷¡£
     /// </summary>
     class Class1
     {
      /// <summary>
      /// Ó¦ÓóÌÐòµÄÖ÷Èë¿Úµã¡£
      /// </summary>
      [STAThread]
      static void Main(string[] args)
      {
       //
       // TODO: ÔÚ´Ë´¦Ìí¼Ó´úÂëÒÔÆô¶¯Ó¦ÓóÌÐò
       //
       
       //ÖµÀàÐͶ¨Òå¼°³õʼ»¯
       System.Int16 aShort = new System.Int16 ();//System.Int16 µÈͬÓë short¹Ø¼ü×Ö
       byte aByte = new Byte ();
       decimal aDecimal = 100.5m;
       char aChar = 'y';
       Console.WriteLine ("ÖµÀàÐ͵ijõʼ»¯Öµ£º{0} ,{1} ,{2} ,{3}",aShort,aByte,aDecimal,aChar);

       //ÖµÀàÐ͵ĸ³ÖµÓë²Ù×÷
       float aFloat = 123.123F;
       bool aBool = ((aFloat > 121) && (aFloat < 125));
       if (aBool) {
        int aInteger;
        aInteger = (int) aFloat;//ÏÔʾת»»
                    /*
                     ÏÔʾת»»µÄ¸ñʽ£º
                     ÀàÐÍB ±äÁ¿B;
                     ÀàÐÍA ±äÁ¿A;
                     ±äÁ¿B = (ÀàÐÍB)±äÁ¿A
                     ÏÔʾת»»µÄÏà¹ØÎÊÌ⣺
                     1) ÔÚÊÔͼ°ÑÒ»¸öֵת»»ÎªÒ»¸ö²»ºÏÊʵÄֵʱ£¬»áÔì³ÉÊý¾Ý¶ªÊ§£¬Õâʱ¿ÉÒÔʹÓùؼü×ÖcheckedºÍunchecked£¨±í´ïʽµÄÒç³ö¼ì²é»·¾³£©£¬
                     ÈçÏ£º±äÁ¿B = checked((ÀàÐÍB)±äÁ¿A)£¬Í¬Ê±Ò²¿ÉÒÔÔÚ±àÒëÆ÷ÖÐÐÞ¸ÄÅäÖã¬Ê¹±àÒëÆ÷ÔÚ±àÒëʱ¼ì²éת»»ÊÇ·ñÒç³ö¡£·½·¨¼ûp77
                     2) ʹÓÃConvertÃüÁî½øÐÐÀàÐÍת»»£¬ÓпÉÄÜת»»²»³É¹¦£¬ÕâÊDZàÒëÆ÷»á³öÏÖ´íÎóÌáʾ¡£
                     3) ¶ÔÓÚ»ìºÏµÄת»»£¬¾Í¸ù¾ÝÔËËã·ûµÄÓÅÏȼ¶£¬ÔÚ´¦Àíÿ¸öÔËËã·ûʱִÐÐת»»¡£
                     */

                    double aDouble;
        aDouble = aFloat;  //Òþʽת»»
                    /*
                     Òþʽת»»µÄÒ»°ã¹æÔò£º
                     1£©boolºÍstringÀàÐÍûÓÐÒþʽת»»
                     2£©ÈκÎÀàÐÍA£¬Ö»ÒªÆäÈ¡Öµ·¶Î§ÍêÈ«°üº¬ÔÚÀàÐÍBµÄÈ¡Öµ·¶Î§ÄÚ£¬¾Í¿ÉÒÔÒþʽת»»³ÉÀàÐÍB
                     */

        Console.WriteLine ("ÀàÐÍת»»½á¹û£º{0} ,{1}",aInteger,aDouble);
       }
       
       //ö¾ÙÀàÐ͵ÄʹÓÃ
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       long x = (long)Data.Min ;
       long y = (long)Data.Max ;
       Console.WriteLine ("ö¾ÙÀàÐ͵ÄÖµ£º{0} ,{1}",x,y);

       //½á¹¹µÄʹÓÃ
       MyPoint aPoint;
       aPoint.x = 10;
       aPoint.y = 100;
       Console.WriteLine ("½á¹¹ÀàÐ͵ÄÖµ£º{0} ,{1}",aPoint.x ,aPoint.y );
                Console.ReadLine();

      }

      //ö¾ÙÀàÐ͵Ķ¨Òå
            /*
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                 */
      enum Data : long {   
       Min = 255L, Mid = 1024L, Max = 32768L
      };

      //½á¹¹µÄ¶¨Òå
            //1) ½á¹¹ºÍÀàÔÚʹÓÃÉÏûÓÐÇø±ð£¬Î¨Ò»µÄÇø±ðÊÇÔÚÄÚ´æÀïµÄ´æ´¢·½Ê½£¬½á¹¹ÊÇÖµÀàÐÍ£¬¶øÀàÊÇÒýÓÃÀàÐÍ£¬
            //ÔÚÐèÒª·ÃÎʿ죬¼ÆËãÉٵĵط½Óýṹ£¬¼ÆËã¶àµÄµØ·½ÓÃÀà¡£

      public struct MyPoint
      {
       public int x, y;
       public MyPoint( int x, int y)
       {
        this.x = x;
        this.y = y;
       }
      }
     }
    }

  • ¿ªÊ¼Ñ§Ï°C#ÁË

    2008-02-26 16:51:32

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