gif录制质量差，下载代码查看效果。
就3个函数，可进行多种配置，实现不同效果。
可应用于连续浏览组件（图像等）、tab切换、弹出对话框等效果。
更多设计模式可参考html5动画（tab、窗体、幻灯播放等）：http://www.htmleaf.com/html5/html5donghua/
代码改编自微软示例代码库
// Copyright © Microsoft Corporation. All Rights Reserved.
// This code released under the terms of the
// Microsoft Public License (MS-PL, http://opensource.org/licenses/ms-pl.html.)
资源文件列表
Demo_T/.vs/Demo_T/v15/.suo , 58368
Demo_T/.vs/Demo_T/v15/Server/sqlite3/db.lock , 0
Demo_T/.vs/Demo_T/v15/Server/sqlite3/storage.ide , 696320
Demo_T/.vs/Demo_T/v15/Server/sqlite3/storage.ide-shm , 32768
Demo_T/.vs/Demo_T/v15/Server/sqlite3/storage.ide-wal , 4124152
Demo_T/.vs/Demo_T/v16/.suo , 69632
Demo_T/.vs/Demo_T/v16/Server/sqlite3/db.lock , 0
Demo_T/.vs/Demo_T/v16/Server/sqlite3/storage.ide , 704512
Demo_T/Demo_T/App.config , 189
Demo_T/Demo_T/App.xaml , 366
Demo_T/Demo_T/App.xaml.cs , 333
Demo_T/Demo_T/background.jpg , 111513
Demo_T/Demo_T/bin/Debug/Demo_T.exe , 137728
Demo_T/Demo_T/bin/Debug/Demo_T.exe.config , 189
Demo_T/Demo_T/bin/Debug/Demo_T.pdb , 62976
Demo_T/Demo_T/bin/Debug/英文字体.ttf , 88036
Demo_T/Demo_T/ClassLibrary/Cushion.cs , 10317
Demo_T/Demo_T/ClassLibrary/CushionRotate.cs , 4325
Demo_T/Demo_T/ClassLibrary/CushionTranslation.cs , 2217
Demo_T/Demo_T/Demo_T.csproj , 4899
Demo_T/Demo_T/MainWindow.xaml , 838
Demo_T/Demo_T/MainWindow.xaml.cs , 6292
Demo_T/Demo_T/MenuFlag.xaml , 757
Demo_T/Demo_T/MenuFlag.xaml.cs , 651
Demo_T/Demo_T/Properties/AssemblyInfo.cs , 2306
Demo_T/Demo_T/Properties/Resources.Designer.cs , 2825
Demo_T/Demo_T/Properties/Resources.resx , 5612
Demo_T/Demo_T/Properties/Settings.Designer.cs , 1093
Demo_T/Demo_T/Properties/Settings.settings , 201
Demo_T/Demo_T/TestFlag.xaml , 647
Demo_T/Demo_T/TestFlag.xaml.cs , 1348
Demo_T/Demo_T.sln , 1126