c# oop tutorial

parametersstatic void Threadmethodparameter (object Parameter){for (int j = 0; J {Console.WriteLine ("B" +parameter);}}}}Open two threads respectively in the agent.The first thread Threada without parameters, and the thread runs to execute the Threadmethod () method.The second thread threadb with an object parameter and executes the Threadmethodparameter (object Parameter) method with the Parameterizedthreadstart delegate. This thread is calling start () When you pass in the required parameters

Third, thread timer (System.Threading.Timer) Thread timers also do not rely on forms, a simple, lightweight timer that uses callback methods instead of events and is supported by thread pool threads. Thread timers are useful in scenarios where messages are not sent on a thread. The code example is given here only for the use of the console thread timer, followed by several other code examples: Using System; Using System.Collections.Generic; Using System.Runtime.InteropServices; Using Sy

{M_tablen AME = tablename; M_conn. Open (); String sql = "CREATE TABLE" + tablename + "(mhtlocation varchar (20))"; M_cmd.commandtext = SQL; M_cmd. ExecuteNonQuery (); M_conn. Close (); catch (System.Exception e) {MessageBox.Show ("Create Table failed!"); }} Public override void Insert (string mhtlocation) {try {//insert Data m_conn. Open (); String sql = "INSERT INTO [" + M_tablename + "] values (' + mhtlocation + ')";

. Connection = CNN; Cmd.commandtext = "SELECT * from Test"; Sqlitedataadapter da = new Sqlitedataadapter (); Da. SelectCommand = cmd; DataSet ds = new DataSet (); Da. Fill (DS); Paging query Display Statement Select * from Test Limit 10; The above statement represents fetching data from the account table, skipping 10 rows, and taking 10 rows Read more about C # Interested readers can view the site topics: "

: Constant numerical descriptionVbbinarycompare 0 performs binary comparisons.vbTextCompare 1 performs a text comparison.Vbdatabasecompare 2 performs a comparison based on the information contained in the database (performing comparisons in this database). Response.Write (Split ("1,2", ",")); Out:12 Dim MyString, myarray, Msg MyString = "vbscriptxisxfun!" MyArray = Split (MyString, "X",-1, 1) ' myarray (0) contains "VBScript". ' MyArray (1) contains ' is '. ' MyArra

This article illustrates how C # implements exporting list data to XML files. Share to everyone for your reference, specific as follows: C # Exports list data to an XML file, where the main uses are: XmlSerializer Class (System.Xml.Serialization) Serializes an object into an XML document and deserializes an object from an XML document. XmlSerializer allows you to control how objects are encoded into XML.

System.Globalization.NumberFormatInfo Provider = new System.Globalization.NumberFormatInfo (); Provider. Percentdecimaldigits = 2;//A decimal point to retain several digits. Provider. Percentpositivepattern = where 1;//percent signs appear. Double result = (double) 1/3;//Be sure to use double type. Console.WriteLine (Result. ToString ("P", provider)); 33.33% //or Console.WriteLine ((result*100). ToString ("#0. #0") + "%"); 5.string.format () method String str1 = String.Fo

(UInt32 classguid, String E, IntPtr hWndParent, UInt32 Flags); [DllImport ("Setupapi.dll")] static extern Boolean Setupdienumdeviceinfo (IntPtr deviceinfoset, UInt32 Memberindex, ref Sp_devinfo_data deviceinfodata); ... uint newnetstatus = 0;... if (newstatus) newnetstatus = dics_enable; else Newnetstatus = dics_disable; IntPtr Newdeviceinfoset; Sp_devinfo_data spData = new Sp_devinfo_data (); Spdata.cbsize = (UINT) System.Runtime.InteropServices.Marshal.SizeOf (spData); UInt32 requiredsize = 0

The example in this article describes how the C # Simple implementation shows the day of the week in Chinese format. Share to everyone for your reference, specific as follows: 1. Copy Code code as follows: DateTime.Now.ToString ("dddd", New System.Globalization.CultureInfo ("ZH-CN")); 2. Copy Code code as follows: New string[] {"Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday",}[convert.toin

(); } void Run () {Console.WriteLine (THRD). Name + "is waiting for a license (card) ..."); If you do not add a parameter, it can cause infinite wait. if (MySemaphore.sem.WaitOne (1000)) {Console.WriteLine (THRD). Name + "Apply to license (certificate) ..."); Thread.Sleep (500); Although the license is added below, other threads may not have permission to exit the timeout. Console.WriteLine (THRD. Name + "Add a license (card) ..."); MySemaphore.

= new stopwatch (); Hashtable Hashtable = new Hashtable (); dictionary This shows that when you add data hashtable fast. Dictionary fast when you call data frequently. Conclusion:dictionary Read more about C # Interested readers can view the site topics: "C # traversal algorithm and Skills summary", "C # Design Thread usage Tips", "

This article describes the C # simple read-write TXT file method. Share to everyone for your reference, specific as follows: Write txt StringBuilder builder = new StringBuilder (); FileStream fs = new FileStream (Savefilename, filemode.create); StreamWriter sw = New StreamWriter (FS, encoding.default); for (int i = 0; I Read more about C # Interested readers can view the site topics: "

[,] Multiarraya = {{"Shirdrn", "Hamtty", "Tuuty"}, {"New York", "Beijing", "Shanghai"}}; Response.Write (" Read more about C # Interested readers can view the site topics: "C # array Operation tips Summary", "C # Operation Excel Skills Summary", "C # XML file Operation Tips Summary", "

registration. For example, if update () is written in the script in step 1, it is equivalent to test. Update () in C ++ (); 8. Directly calling the registered Lua function in C ++ (*pState)->DoString("update()"); This statement only executes the "update ()" script. In addition, the header files of LuaPlus and Lua, as well as. lib and. dll of LuaPlus, should be put under the project directory. These

For more information about the bibliography, see:C language university practical tutorial/21st century university computer series teaching materials 1. What is the concept of concatenation of operators?M =-N ++; // when n = 3, M = _? _; Verify it yourself! 2. TestProgramIt can only prove that the program is wrong, but it cannot prove that the program is not wrong.When the project manager asks programmers, "When can the bug be repaired ?" "I am use

C #. Net:excel npoi Import and export operation Tutorial read Excel file information and outputUsing Npoi. HSSF. Usermodel;Using Npoi. Ss. Usermodel;Using System;Using System.Collections.Generic;Using System.IO;Create a file Stream objectusing (FileStream filesrc = File.openread (@ "C:\Users\Administrator\Desktop\123.xls")) {Workbook objects Get Excel content Iwo

SCM C Language Tutorial 13th lesson C51 Loop StatementLoop statements are used by almost every program, and are used to implement operations that require multiple iterations. such as a 12M 51 chip application circuit requires the implementation of 1 milliseconds delay, then the execution of 1000 empty statements to achieve the purpose of delay (of course, can use the timer to do, here is not discussed), if

ncb_event; [StructLayout (layoutkind.sequential)] public struct Lana_enum {public byte length; [MarshalAs (UnmanagedType.ByValArray, sizeconst= (int) ncbconst. Max_lana)] [public byte[] LANA; [StructLayout (Layoutkind.auto)] public struct Astat {public adapter_status adapt; [MarshalAs (UnmanagedType.ByValArray, sizeconst= (int) ncbconst. NUM_NAMEBUF)] public name_buffer[] Namebuff; The public class Win32API {[DllImport ("NETAPI32. DLL ")] public static extern char Netbios (ref NCB

This article illustrates the string MD5 code function implemented by C #. Share to everyone for your reference, specific as follows: /* test environment: WinXP SP3, Visual Studio 2008 SP1, Visual Studio SP1 Update: 2014-04-23/ public string Calculatemd5hash (String input) { MD5 MD5 = System.Security.Cryptography.MD5.Create (); byte[] inputbytes = System.Text.Encoding.UTF8.GetBytes (input); Byte[] hash = Md5.computehash (inputbytes); Step

The example of this article describes the C # Setup software to automatically run the method. Share to everyone for your reference, specific as follows: #region /// Read more about C # Interested readers can view the site topics: "C # traversal algorithm and Skills summary", "C # Design Thread usage Tips",