<https://www.delftstack.com/zh-tw/howto/python/how-to-create-and-activate-a-python-virtual-environment/#webpage>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.delftstack.com/zh-tw/howto/python/how-to-create-and-activate-a-python-virtual-environment/>