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8.3 from turtle import * def square(size=50, rgb='red'): pencolor(rgb) for i in range(4): fd(size) left(90) def main(): setup(800, 600) speed(0) n = 1 阅读全文
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6.3 def is_valid(x): data=x if len(data)!=18: return False else: if ord(data[-1])==88 or 48<=ord(data[-1])<=57: return True else: return False with op 阅读全文
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5.3 with open('5//data3.txt','r')as f: data=f.read().split('\n') del data[0] a=list(map(float,data)) b=[] for i in a: if i-int(i)<=0.4: b.append(int(i 阅读全文
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3.1 import random print('用列表存储随机整数: ') ls = [random.randint(1, 100) for i in range(5)] print(ls) print('\n用集合存储随机整数: ') s1 = {random.randint(1,100)for 阅读全文
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2.1 # 基础操作练习: 列表及列表推导式、格式化、类型转换 x = list(range(10)) print('整数输出1: ', end = '') for i in x: print(i, end=' ') print('\n整数输出2: ', end = '') for i in x: 阅读全文