我首先将@action添加到您的change_me()函数中.据我了解，并不总是完全需要它，但是当我忘记添加它时，在自己的代码中几次遇到这样的问题.

I would start by adding @action to your change_me() function. From what I understand, it's not always completely required, but I have encountered problems like this in my own code several times when I've forgotten to add it.

另外按照@mweststrate的建议发布您的.babelrc，因为它将帮助其他人检查是否已加载正确的插件.

Additionally post your .babelrc as @mweststrate suggested, as it will help others to check that the proper plugins are loaded.