Python STL 文件读取：加载 3D 模型数据

The given code is a function that loads a 3D model data from an STL file.\n\nThe code uses the mesh.Mesh class from the mesh module to read the STL file. It then reshapes the vectors of the 3D model into a 2D array of vertices.\n\nThe function returns the vertices of the 3D model as a numpy array.\n\nTo use this code, you need to install the numpy-stl library by running pip install numpy-stl.