'pip' 不是内部或外部命令，也不是可运行的程序 或批处理文件。

**Summary[问题简述（一句话）]**
A clear and concise description of what the issue is.
pip install -r requirements.txt 导入不了
**Env & To Reproduce[复现与环境]**
描述你用的环境、代码版本、模型
C:\Users\1\Desktop\al\MockingBird-main>pip install -r requirements.txt
'pip' 不是内部或外部命令，也不是可运行的程序
或批处理文件。
**Screenshots[截图（如有）]**
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Start with the Windows reproduction command `pip install -r requirements.txt` and inspect `requirements.txt` to understand the expected Python dependencies. Confirm whether the failure is specific to the local Python and pip setup; done means the documented dependency installation works in the reported environment.

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