Happy Chen issues

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                                            Happy Chen

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![5d8a192375a79d26b70585bf7e506c0](https://user-images.githubusercontent.com/12728664/190342503-c018aec4-1f0d-4828-a7e1-962616f0418d.jpg)

enhancement

![Image](https://github.com/user-attachments/assets/5f5d3c4f-8533-44e2-ba15-95a627329dc6)

There are a lot of undefined variables in the code that can't run away and don't know where to come from