本文共 3263 字，大约阅读时间需要 10 分钟。
using System; 
using System.IO; using System.Web; namespace SEC 
{ 
/**//**//**//// 
/// 对文件和文件夹的操作类 
/// public class FileControl { public FileControl() { } /**//**//**//// /// 在根目录下创建文件夹 /// /// 要创建的文件路径 public void CreateFolder(string FolderPathName) { if(FolderPathName.Trim().Length> 0) { try { string CreatePath = System.Web.HttpContext.Current.Server.MapPath ("../../../Images/"+FolderPathName).ToString(); if(!Directory.Exists(CreatePath)) { Directory.CreateDirectory(CreatePath); } } catch { throw; } } } /**//**//**//// /// 删除一个文件夹下面的字文件夹和文件 /// /// public void DeleteChildFolder(string FolderPathName) { if(FolderPathName.Trim().Length> 0) { try { string CreatePath = System.Web.HttpContext.Current.Server.MapPath (FolderPathName).ToString(); if(Directory.Exists(CreatePath)) { Directory.Delete(CreatePath,true); } } catch { throw; } } } /**//**//**//// /// 删除一个文件 /// /// public void DeleteFile(string FilePathName) { try { FileInfo DeleFile = new FileInfo(System.Web.HttpContext.Current.Server.MapPath (FilePathName).ToString()); DeleFile.Delete(); } catch { } } public void CreateFile(string FilePathName) { try { //创建文件夹 string[] strPath= FilePathName.Split('/'); CreateFolder(FilePathName.Replace("/" + strPath[strPath.Length-1].ToString(),"")); //创建文件 夹 FileInfo CreateFile =new FileInfo(System.Web.HttpContext.Current.Server.MapPath (FilePathName).ToString()); //创建文件 if(!CreateFile.Exists) { FileStream FS=CreateFile.Create(); FS.Close(); } } catch { } } /**//**//**//// /// 删除整个文件夹及其字文件夹和文件 /// /// public void DeleParentFolder(string FolderPathName) { try { DirectoryInfo DelFolder = new DirectoryInfo(System.Web.HttpContext.Current.Server.MapPath (FolderPathName).ToString()); if(DelFolder.Exists) { DelFolder.Delete(); } } catch { } } /**//**//**//// /// 在文件里追加内容 /// /// public void ReWriteReadinnerText(string FilePathName,string WriteWord) { try { //建立文件夹和文件 //CreateFolder(FilePathName); CreateFile(FilePathName); //得到原来文件的内容 FileStream FileRead=new FileStream(System.Web.HttpContext.Current.Server.MapPath (FilePathName).ToString(),FileMode.Open,FileAccess.ReadWrite); StreamReader FileReadWord=new StreamReader(FileRead,System.Text.Encoding.Default); string OldString = FileReadWord.ReadToEnd().ToString(); OldString = OldString + WriteWord; //把新的内容重新写入 StreamWriter FileWrite=new StreamWriter(FileRead,System.Text.Encoding.Default); FileWrite.Write(WriteWord); //关闭 FileWrite.Close(); FileReadWord.Close(); FileRead.Close(); } catch { // throw; } } /**//**//**//// /// 在文件里追加内容 /// /// public string ReaderFileData(string FilePathName) { try { FileStream FileRead=new FileStream(System.Web.HttpContext.Current.Server.MapPath (FilePathName).ToString(),FileMode.Open,FileAccess.Read); StreamReader FileReadWord=new StreamReader(FileRead,System.Text.Encoding.Default); string TxtString = FileReadWord.ReadToEnd().ToString(); //关闭 FileReadWord.Close(); FileRead.Close(); return TxtString; } catch { throw; } } /**//**//**//// /// 读取文件夹的文件 /// /// /// public DirectoryInfo checkValidSessionPath(string FilePathName) { try { DirectoryInfo MainDir = new DirectoryInfo(System.Web.HttpContext.Current.Server.MapPath (FilePathName)); return MainDir; } catch { throw; } } } 
} 转载于:https://www.cnblogs.com/zhangchenliang/archive/2007/05/06/736754.html