epeaktop的专栏

my %hash;$hash{"objA"}{"size"}="ewr";$hash{"objA"}{"width"}="werwer";$hash{"objB"}{"size"}="ewasdr";$hash{"objB"}{"width"}="werweasdr";foreach my $k (grep {/^obj/} keys %hash) { print $k

继承{1，2，3}{1，2，3，4，5}class foo(object): def __init__(self, arg) self.a = 100; def doAction(self, arg1, arg2) self.b = arg1 self.c = arg2class child(foo): def __init_