摘要:程序: 1 import turtle 2 3 class Stack: 4 def __init__(self): 5 self.items = [] 6 def isEmpty(self): 7 return len(self.items) == 0 8 def push(self, item)
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posted @ 2020-03-30 00:52
posted @ 2020-03-30 00:52
posted @ 2020-03-30 00:31
posted @ 2020-03-12 22:15
posted @ 2020-03-12 21:50