C# 清空文件夹内容

　　　　　/// <summary>
        /// 清空文件夹
        /// </summary>
        /// <param name="filefullPath">文件夹路径</param>
        /// <param name="FileExpirationTime">过期时间</param>
        private void removeTemporaryFiles(string filefullPath, int FileExpirationTime)
        {
　　　　　　　　　　DirectoryInfo dir = new DirectoryInfo(filefullPath);
                if (dir.Exists)
                {
                    DirectoryInfo[] childs = dir.GetDirectories();
                    foreach (DirectoryInfo child in childs)
                    {
                        if (child.CreationTime < DateTime.Now.AddMinutes(-FileExpirationTime))
                            child.Delete(true);
                    }
                }
　　　　　　　　　　//清空文件夹内zip压缩文件
                foreach (string file in Directory.GetFiles(filefullPath, "*.zip"))
                {
                    FileInfo fileInfo = new FileInfo(file);
                    if (fileInfo.CreationTime < DateTime.Now.AddMinutes(-FileExpirationTime))
                    {
                        fileInfo.Delete();
                    }
                }

        
        }