mxg:文件夹不存在时，先创建文件夹

PackageUpdater/WPFTestUpdate/MainWindow.xaml.cs

@@ -154,6 +154,8 @@ namespace PackageUploader
                         string compressName = Untility.GetFileVersion(exePath).ToString().ToCompressKey();
                         RefrushState("正在进行压缩");
                         string compressPath = @"C:\VersionsTest";
+                        if (!Directory.Exists(compressPath))
+                            Directory.CreateDirectory(compressPath);
                         string compressFullPath = Path.Combine(compressPath, compressName);
 
                         Untility.CompressDir(compressFullPath, dirList.ToArray(), RefrushState);