1.__file__
所在模块：os
变量作用：指向当前文件
当前文件的完整路径：os.path.abspath(__file__)
当前文件所属目录：os.path.dirname(os.path.abspath(__file__))
当前文件所属目录的上级目录：os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
cat filelocation.py import os print(__file__) print(os.path.abspath("filelocation.py")) print(os.path.abspath(__file__)) print(os.path.dirname(os.path.abspath(__file__))) print(os.path.dirname(os.path.dirname(os.path.abspath(__file__)))) 运行： filelocation.py /home/test/CodeProjects/PythonProjects/test/filelocation.py /home/test/CodeProjects/PythonProjects/test/filelocation.py /home/test/CodeProjects/PythonProjects/test /home/test/CodeProjects/PythonProjects
原文：https://www.cnblogs.com/DesignerA/p/11618601.html