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这个好像比较简单。 前缀规则好像还没有理清楚。 # coding = utf-8class Stack: def __init__(self): self.items = [] # 是否为空 def is_empty(self): return self.items == [] # 进栈 def push(self, item): self.items.append(item) #
turtle模块和random模块 1 # -*- coding: utf-8 -*- 2 # ~ import turtle 3 # ~ import random 4 from turtle import * 5 from random import * 6 def ground(): 7 hideturtle() 8 speed(100) 9 for i in range(400):10 pensize(randint(5,10))11
