public CaseModel Func_Compression()
        {
            return(new CaseModel()
            {
                NameSign = @"压缩计算",
                ExeEvent = () => {
                    const string oldpath = @"D:\ZRQDownloads\imgs";
                    if (!Directory.Exists(oldpath))
                    {
                        Console.WriteLine("停止执行, 路径不存在: {0}", oldpath);
                        return true;
                    }

                    ImageHandler handler = new ImageHandler();
                    const int maxwidth = 1200;
                    const int maxheight = 1200;
                    handler.SetMaxSize(maxwidth, maxheight);
                    const long maxbytelength = 2 * 1024 * 1024;
                    handler.SetMaxByteLength(maxbytelength);

                    DirectoryInfo[] sondirs = PathHelp.AllSonDirectorys(new DirectoryInfo(oldpath));
                    foreach (DirectoryInfo dirinfo in sondirs)
                    {
                        FileInfo[] fis = PathHelp.PatternFileInfo(dirinfo, @".*\.(jpg|png|gif)");
                        foreach (FileInfo file in fis)
                        {
                            byte[] imgvalues = handler.Calc(file);
                            if (CheckData.IsSizeEmpty(imgvalues))
                            {
                                Console.WriteLine("压缩图片失败, 结果为空!");
                                Console.WriteLine("FileInfo.FullName: {0}", file.FullName);
                                return false;
                            }
                            string newdirpath = file.DirectoryName.Replace("imgs", "imgs_c");
                            string newfilepath = PathHelp.CreateUseFilePath(newdirpath, file.Name);
                            handler.SaveImg(imgvalues, newfilepath);
                        }
                    }
                    return true;
                },
            });
        }