KF能调用C函数吗，只知道API可以调用KF

可以呀，请看帮助文件上的内容：
These Open C programs are routines that follow the Open C guidelines and rules. See the Open C Help. The functions included in the Knowledge Fusion Open C API are documented here. There are two different user function APIs available. The UF_KF interface allows you to create user function programs that can call Unigraphics NX Knowledge Fusion functions from your user function program. See Calling UG/Open Knowledge Fusion from a UF for an explanation of this API. The UF_KF interface allows you to define your own Fusion function that will call your user function from UG/Knowledge Fusion when it is invoked, in order to execute your User function routine. See Calling UFs from UG/Knowledge Fusion for an explanation of this API. These APIs are known collectively as the UG/KF UG/Open API.
不过还没有试过。

可以調用沒有問題 我見過老師用過

可以。

假设你的C是 your_c_func()，位于 libyour.dll. 你的C要能够接受KF过来的输入，至于怎么输入，你需要看些文档。输出是KF的各种类型，你要在C中设定。

Defun: your_kf_func( some input parameters )
@{

請參考附件資料,其ug的help亦有相關說明

谢谢YYHSU

6搂的很专业啊，谢谢

谢谢看看学习

受教了，非常感谢！