//C#写入/读出文本文件 string fileName =@"c:I.txt"; StreamReader sr = new StreamReader(fileName); string str=sr.ReadLine (); sr.close(); StreamWriterrw=File.CreateText(Server.MapPath(".")+"myText.txt"); rw.WriteLine("写入"); rw.WriteLine("abc"); rw.WriteLine(".NET笔记"); rw.Flush(); rw.Close(); //打开文本文件 StreamReadersr=File.OpenText(Server.MapPath(".")+"myText.txt"); StringBuilderoutput=newStringBuilder(); stringrl; while((rl=sr.ReadLine())!=null) ...{ output.Append(rl+""); } lblFile.Text=output.ToString(); sr.Close(); //C#追加文件 StreamWritersw=File.AppendText(Server.MapPath(".")+"myText.txt"); sw.WriteLine("追逐理想"); sw.WriteLine("kzlll"); sw.WriteLine(".NET笔记"); sw.Flush(); sw.Close(); //C#拷贝文件 stringOrignFile,NewFile; OrignFile=Server.MapPath(".")+"myText.txt"; NewFile=Server.MapPath(".")+"myTextCopy.txt"; File.Copy(OrignFile,NewFile,true); //C#删除文件 stringdelFile=Server.MapPath(".")+"myTextCopy.txt"; File.Delete(delFile); //C#移动文件 stringOrignFile,NewFile; OrignFile=Server.MapPath(".")+"myText.txt"; NewFile=Server.MapPath(".")+"myTextCopy.txt"; File.Move(OrignFile,NewFile); //C#创建目录 //创建目录c:sixAge DirectoryInfod=Directory.CreateDirectory("c:sixAge"); //d1指向c:sixAgesixAge1 DirectoryInfod1=d.CreateSubdirectory("sixAge1"); //d2指向c:sixAgesixAge1sixAge1_1 DirectoryInfod2=d1.CreateSubdirectory("sixAge1_1"); //将当前目录设为c:sixAge Directory.SetCurrentDirectory("c:sixAge"); //创建目录c:sixAgesixAge2 Directory.CreateDirectory("sixAge2"); //创建目录c:sixAgesixAge2sixAge2_1 Directory.CreateDirectory("sixAge2sixAge2_1");
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