C# 文件操作 之 删除、复制、转移多个文件[转]

string[] format = { "*.jpg", "*.doc", "*.exe", "*.pdf", "*.xls" };  
 
# 文件流操作 之 删除、复制、转移多个文件  
  
      /// <summary>  
       /// 删除文件夹下面所有图片  
       /// </summary>  
       /// <param name="oldpngPath">待删除文件路径</param>  
       /// <param name="newpngPath">删除到的新目录</param>  
       /// <param name="geshi">操作文件的格式 例如:*.png、*.xml</param>  
       public void deleteAll(string delpath, string format )  
       {  
           string[] files = Directory.GetFiles(delpath, format[0]);  
           foreach (string file in files)  
           {  
               File.Delete(file);  
           }  
       }  
       /// <summary>  
       /// 复制文件夹下面所有图片  
       /// </summary>  
       /// <param name="oldpngPath">待复制文件路径</param>  
       /// <param name="newpngPath">复制到的新目录</param>  
       /// <param name="geshi">操作文件的格式 例如:*.png、*.xml</param>  
       public void copyALl(string oldpngPath, string newpngPath, string format )  
       {  
           string[] files = Directory.GetFiles(oldpngPath, format[0]);  
           foreach (string file in files)  
           {  
               string otherFile = Path.Combine(oldpngPath, Path.GetFileName(file));  
               File.Copy(file, newpngPath + "\" + Path.GetFileName(file));  
           }  
       }  
      /// <summary>  
       /// 移动文件夹下的所有文件  
       /// </summary>  
       /// <param name="olderpath">待移动的文件目录</param>  
       /// <param name="topath">新目录</param>  
       public void moveAll(string olderpath, string topath)  
       {  
           string[] files = Directory.GetFiles(delpath, format[0]);  
           foreach (string file in files)  
           {  
               File.Move(file, topath); //移动文件  
           }  
       }