a=1 b=2 a b
只显示2
from IPython.core.interactiveshell import InteractiveShell InteractiveShell.ast_node_interactivity="all" a=1 b=2 a b
显示1,2

a=1 b=2 a b
只显示2
from IPython.core.interactiveshell import InteractiveShell InteractiveShell.ast_node_interactivity="all" a=1 b=2 a b
显示1,2