Hello, Spine v2.1 is very old (it's a version from at least 4 years ago)
The problem you are seeing is caused by the new flipping introduced in v3: Blog: Spine 3.0.00 released: Flipping
Unfortunately due to these changes you will need to manually fix your animations if you want to use them in a newer Spine version.
你好，Spine v2.1很老了（这是至少4年前的一个版本）
您看到的问题是由v3中引入的新翻转引起的：http://esotericsoftware.com/blog/Spine-3.0.00-released#Flipping
不幸的是，由于这些更改，如果您想在较新的Spine版本中使用它们，则需要手动修复动画。
