Functionalism has great influence on how to resolve mind - body problem and many people support functionalist ' s way , but when facing internationality , qualia and input - output problem , functionalism has so many difficulties 功能主义虽然影响很大，支持的人数也很多，但是在面对意向性、感觉性质和输入与输出问题时却面临着难以克服的困境。
