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in manual, about LVS:
compare This method (compare will extract the netlist (if not already done) and compare it against the schematic. It returns true on success and false otherwise, in case you like to take specific actions on success or failure.
It seems the command "compare" is used to compare(layout, old.cir)
sometimes, after I modified my schematic, I want to compare the new schematic (new.cir) to an old schematic (old.cir).
So can the command "compare" compare two netlists rather than layout-vs-schematic?