Java一个源文件中可以有多个主类

西门郡丞: 我在linux下面用这个方法，得到了这个错误信息： File "PyInstaller/loader/pyimod03_importers.py", line 495, in exec_module File "pandas/__init__.py", line 48, in File "PyInstaller/loader/pyimod03_importers.py", line 495, in exec_module File "pandas/core/api.py", line 48, in File "PyInstaller/loader/pyimod03_importers.py", line 495, in exec_module File "pandas/core/groupby/__init__.py", line 1, in File "PyInstaller/loader/pyimod03_importers.py", line 495, in exec_module File "pandas/core/groupby/generic.py", line 70, in File "PyInstaller/loader/pyimod03_importers.py", line 495, in exec_module File "pandas/core/frame.py", line 157, in File "PyInstaller/loader/pyimod03_importers.py", line 495, in exec_module File "pandas/core/generic.py", line 152, in File "PyInstaller/loader/pyimod03_importers.py", line 495, in exec_module File "pandas/core/window/__init__.py", line 1, in File "PyInstaller/loader/pyimod03_importers.py"