我已经开始工作了.

2 件事中的 1 件事对我有用:

1 of 2 things worked for me:

1. 我重新编辑了向每一帧添加 gif 的属性以取消绘制.

1. I've reedited the gif adding property to every frame to undraw itself.

我已经换了 VS 的版本(我用的是免费的专业学生版，现在我m 使用来自 MSDN 订阅的一个)

I've changed the version of VS (I was using free professional student version, now I m using one from MSDN subscription)

感谢您的输入.它引导我得出结论，VS 本身可能有问题，而不是我的编程风格:)

Thanks for input guys. It guided me to conclusion that that it might be something wrong with VS itself not with my programming style :)