沃·夏澈德的博客

from Rectangle import Rectangle from Square import Square def resize(r): while r.getHeight() <= r.getWidth() : r.setHeight(r.getHeight()+1) print('It’s OK.') r = Rectangle(2,3) s...

class Sieve(Item): def out(self): n = self.source.out() self.source=Filter(self.source,n) return n def __init__(self,src): self.source = src class Counter: ...