高级程序设计实验报告

PAGE1高级程序设计实验报告班级学号：姓名：实验名称：指导老师：日期：实验十一文件和流I/O一、实验题目：文件和流I/O二、实验内容：1．掌握磁盘的基本操作2．掌握目录的基本操作3．文件的基本操作4．文本文件的读取和写入5．字符串的读取和写入6．二进制文件的读取和写入I7.二进制文件的读取和写入2三、主要程序代码：1.usingSystem;usingSystem.IO;usingSystem.Collections.Generic;usingSystem.Text;namespace实验1{classTest{publicstaticvoidMain(){DriveInfo[]allDrives=DriveInfo.GetDrives();foreach(DriveInfodinallDrives){Console.WriteLine("Drive{0}",d.Name);Console.WriteLine("Filetype:{0}",d.DriveType);if(d.IsReady==true){Console.WriteLine("Volumelabel:{0}",d.VolumeLabel);Console.WriteLine("Filesystem:{0}",d.DriveFormat);Console.WriteLine("Availablespacetocurrentuser:{0,15}bytes",d.AvailableFreeSpace);Console.WriteLine("Totalavailablespace:{0,15}bytes",d.TotalFreeSpace);Console.WriteLine("Totalsizeofdrive:{0,15}bytes",d.TotalSize);}}Console.ReadKey();}}2.usingSystem;usingSystem.IO;namespace实验11{classProgram{staticvoidMain(string[]args){Stringpath0=@"C:\WINDOWS\security";Stringpath1=@"C:\WINDOWS";try{Console.WriteLine("应用程序当前工作目录为:\n{0}",Directory.GetCurrentDirectory());string[]subdirectotyEntries=Directory.GetDirectories(Directory.GetDirectoryRoot(Directory.GetCurrentDirectory()));Console.WriteLine("根目录中子目录总数为{0}，子目录名称分别为:",subdirectotyEntries.Length);foreach(stringsubdirectoryinsubdirectotyEntries)Console.WriteLine("{0}",subdirectory);string[]dirs=Directory.GetFiles(path0);Console.WriteLine("目录{0}下的总文件总数为{1}。文件名称分别为：",path0,dirs.Length);foreach(stringdirindirs)Console.WriteLine("{0}",dir);string[]dirs1=Directory.GetFiles(path1,"*.ini");Console.WriteLine("目录{0}下拓展名为.sys的文件总数为{1}。文件名称分别为：",path1,dirs1.Length);foreach(stringdirindirs1)Console.WriteLine("{0}",dir);}catch(Exceptionerr){Console.WriteLine("\n操作失败:{0}",err.Message);}Console.ReadLine();}}}3usingSystem;usingSystem.IO;usingSystem.Collections.Generic;usingSystem.Text;namespace文件的基本操作{classProgram{staticvoidMain(string[]args){strings;stringpath=@"c:\temp\SrcFile.txt";FileInfofi1=newFileInfo(path);if(!fi1.Exists){using(StreamWritersw=fi1.CreateText()){boolbContinue=true;while(bContinue){Console.Write("请输入文件内容：");s=Console.ReadLine();if(s!="")sw.WriteLine(s);elsebContinue=false;}}}fi1=newFileInfo(path);Console.WriteLine("源文件{0}所在的目录为：\n\t{1}",path,fi1.DirectoryName);Console.WriteLine("源文件{0}长度为：\n\t{1}",path,fi1.Length);Console.WriteLine("源文件{0}内容为：",path);using(StreamReadersr=fi1.OpenText()){s="";while((s=sr.ReadLine())!=null)Console.WriteLine("\t{0}",s);}try{stringpath2=@"c:\temp\DesFile.txt";FileInfofi2=newFileInfo(path2);fi2.Delete();fi1.CopyTo(path2);Console.WriteLine("源文件成功复制至目标文件：\n\t{0}",path2);fi2.Delete();Console.WriteLine("目标文件{0}成功删除",path2);}catch(Exceptione){Console.WriteLine("\n操作失败：{0}",e.ToString());}Console.ReadKey();}}}4．usingSystem;usingSystem.IO;usingSystem.Collections.Generic;usingSystem.Text;namespace文本文件的读取和写入{classProgram{privateconststringFILE_NAME=@"c:\temp\TestFile.txt";staticvoidMain(string[]args){using(StreamWritersw=newStreamWriter(FILE_NAME)){sw.WriteLine("文本文件的写入/读取示例：");sw.WriteLine("");sw.WriteLine("写入正数、浮点数、Boolean值、字符、字符串、日期");Console.WriteLine("请输入整数：");inti=int.Parse(Console.ReadLine());sw.WriteLine(i);Console.WriteLine("请输入浮点数：");floatf=float.Parse(Console.ReadLine());sw.WriteLine(f);Console.WriteLine("请输入Boolean值：");boolb=bool.Parse(Console.ReadLine());sw.WriteLine(b);Console.WriteLine("请输入字符：");charc=char.Parse(Console.ReadLine());sw.WriteLine(c);Console.WriteLine("请输入字符串：");strings=(Console.ReadLine());sw.WriteLine(s);sw.Write("当前日期为：");sw.WriteLine(DateTime.Now);}try{using(StreamReadersr=newStreamReader(FILE_NAME)){Stringline;while((line=sr.ReadLine())!=null)Console.WriteLine(line);}}catch(Exceptione){Console.WriteLine("该文件不能读取，原因如下：");Console.WriteLine(e.Message);}Console.ReadKey();}}5．usingSystem;usingSystem.IO;usingSystem.Collections.Generic;usingSystem.Text;namespace字符串的读取和写入{classProgram{staticvoidMain(string[]args){strings,textReaderText="";boolbContinue=true;while(bContinue){Console.Write("请输入文件内容（以结束）：");s=Console.ReadLine();if(s!="")textReaderText=textReaderText+s+"\n";elsebContinue=false;}Console.WriteLine("原始文本内容如下：");Console.WriteLine("\n{0}",textReaderText);stringaLine,aParagraph=null;StringReaderd=newStringReader(textReaderText);while(true){aLine=d.ReadLine();if(aLine!=null){aParagraph=aParagraph+aLine+"";}else{aParagraph=aParagraph+"\n";break;}}Console.WriteLine("修改后的文本（连续的段落aParagraph）内容如下：");Console.WriteLine("\n{0}",aParagraph);inta;Charb;StringWriterc=newStringWriter();d=newStringReader(aParagraph);while(true){a=d.Read();if(a==-1)break;b=Convert.ToChar(a);if(b==''){c.Write(".\n");d.Read();}elsec.Write(b);}Console.WriteLine("\n还原后的原始文本内容textReaderText：");Console.WriteLine("\n{0}",c.ToString());Console.ReadKey();}}}6．usingSystem;usingSystem.IO;usingSystem.Collections.Generic;usingSystem.Text;namespace二进制文件的读取和写入{classProgram{staticvoidMain(string[]args){stringpath=@"c:\temp\MyTest.txt";if(File.Exists(path))File.Delete(path);using(FileStreamfs=File.Create(path)){AddText(fs,"Thisissometext.");AddText(fs,"Thisissomemoretext.");AddText(fs,"\r\nandThisisonanewline.");AddText(fs,"\r\n以下是1-100之间的偶数：\r\n");intj=0;for(inti=1;i<=100;i++){if(i%2==0){AddText(fs,i.ToString()+"");j++;}if(j%10==0)AddText(fs,"\r\n");}}using(FileStreamfs=File.OpenRead(path)){byte[]b=newbyte[1024];UTF8Encodingtemp=newUTF8Encoding(true);while(fs.Read(b,0,b.Length)>0)Console.WriteLine(temp.GetString(b));}Console.ReadKey();}privatestaticvoidAddText(FileStreamfs,stringvalue){BinaryReadersb=newBinaryReader(fs,Encoding.Default);byte[]info=newUTF8Encoding(true).GetBytes(value);fs.Write(info,0,info.Length);}}}

7．

usingSystem;usingSystem.IO;usingSystem.Collections.Generic;usingSystem.Text;namespace二进制文件的读取和写入{classprogram{privateconststringFILE_NAME=@"c:\temp\Test.data";staticvoidMain(string[]args)