输入python demo_toolbox.py后无法跳出应用界面?

**Summary[问题简述（一句话）]**
输入python demo_toolbox.py后无法跳出应用界面
**Env & To Reproduce[复现与环境]**
描述你用的环境、代码版本、模型

**Screenshots[截图（如有）]**
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Start by running `python demo_toolbox.py` in the reported environment and inspect that entry point and its startup output. Determine why the application interface does not appear; done means the demo opens its interface successfully and the behavior is covered by an appropriate verification or reproduction check.

Written by the indexing model from the issue text.