C#入门代码.doc

编辑版word
编辑版word
编辑版word

您现在的位置>HYPERLINK"http://www.bj-xinhua.com/001oldSite/index.asp"\t"_parent"首页>HYPERLINK"http://www.bj-xinhua.com/001oldSite/newsList.asp?class=网络编程"\t"_parent"网络编程>正文C#入门代码新闻类别:网络编程|来源:百度|日期：2007-1-10|阅读：次一、从控制台读取东西代码片断：usingSystem;
classTestReadConsole{publicstaticvoidMain(){Console.Write(Enteryourname:);stringstrName=Console.ReadLine();Console.WriteLine(Hi+strName);}}二、读文件代码片断：usingSystem;usingSystem.IO;
publicclassTestReadFile{publicstaticvoidMain(String[]args){//ReadtextfileC:\temp\test.txtFileStreamfs=newFileStream(@c:\temp\test.txt,FileMode.Open,FileAccess.Read);StreamReadersr=newStreamReader(fs);Stringline=sr.ReadLine();while(line!=null){Console.WriteLine(line);line=sr.ReadLine();}sr.Close();fs.Close();}}三、写文件代码：usingSystem;usingSystem.IO;
publicclassTestWriteFile{publicstaticvoidMain(String[]args){//CreateatextfileC:\temp\test.txtFileStreamfs=newFileStream(@c:\temp\test.txt,FileMode.OpenOrCreate,FileAccess.Write);StreamWritersw=newStreamWriter(fs);//WritetothefileusingStreamWriterclasssw.BaseStream.Seek(0,SeekOrigin.End);sw.WriteLine(FirstLine);sw.WriteLine(SecondLine);sw.Flush();}}四、拷贝文件：usingSystem;usingSystem.IO;
classTestCopyFile{publicstaticvoidMain(){File.Copy(c:\\temp\\source.txt,C:\\temp\\dest.txt);}}五、移动文件：usingSystem;usingSystem.IO;
classTestMoveFile{publicstaticvoidMain(){File.Move(c:\\temp\\abc.txt,C:\\temp\\def.txt);}}六、使用计时器：usingSystem;usingSystem.Timers;
classTestTimer{publicstaticvoidMain(){Timertimer=newTimer();timer.Elapsed+=newElapsedEventHandler(DisplayTimeEvent);timer.Interval=1000;timer.Start();timer.Enabled=true;
while(Console.Read()!='q'){//-------------}}publicstaticvoidDisplayTimeEvent(objectsource,ElapsedEventArgse){Console.Write(\r{0},DateTime.Now);}}七、调用外部程序：classTest{staticvoidMain(string[]args){System.Diagnostics.Process.Start(notepad.exe);}}
ADO.NET方面的：八、连接AccessHYPERLINK"http://www.devdao.com/sql.asp"数据库：usingSystem;usingSystem.Data;usingSystem.Data.OleDb;
classTestADO{staticvoidMain(string[]