List的使用

 List<string> AllFilesPath = new List<string>();
                if (filesOrDirectoriesPaths.Length > 0) // get all files path
                {
                    for (int i = 0; i < filesOrDirectoriesPaths.Length; i++)
                    {
                        if (File.Exists(@strZipTopDirectoryPath + filesOrDirectoriesPaths[i]))
                        {
                            AllFilesPath.Add(strZipTopDirectoryPath + filesOrDirectoriesPaths[i]);
                        }
                        else if (Directory.Exists(@strZipTopDirectoryPath + filesOrDirectoriesPaths[i]))
                        {
                            GetDirectoryFiles(filesOrDirectoriesPaths[i], AllFilesPath);
                        }
                    }
                }

 for (int i = 0; i < AllFilesPath.Count; i++)
                    {
                        string strFile = AllFilesPath[i].ToString();
                        try
                        {
                            if (strFile.Substring(strFile.Length - 1) == "") //folder
                            {
                                string strFileName = strFile.Replace(strZipTopDirectoryPath, "");
                                if (strFileName.StartsWith(""))
                                {
                                    strFileName = strFileName.Substring(1);
                                }
                                ZipEntry entry = new ZipEntry(strFileName);
                                entry.DateTime = DateTime.Now;
                                zipOutputStream.PutNextEntry(entry);
                            }
                            else //file
                            {
                                FileStream fs = File.OpenRead(strFile);

                                byte[] buffer = new byte[fs.Length];
                                fs.Read(buffer, 0, buffer.Length);

                                string strFileName = strFile.Replace(strZipTopDirectoryPath, "");
                                if (strFileName.StartsWith(""))
                                {
                                    strFileName = strFileName.Substring(0);
                                }
                                ZipEntry entry = new ZipEntry(strFileName);
                                entry.DateTime = DateTime.Now;
                                zipOutputStream.PutNextEntry(entry);
                                zipOutputStream.Write(buffer, 0, buffer.Length);

                                fs.Close();
                                fs.Dispose();
                            }
                        }
                        catch
                        {
                            continue;
                        }
                    }