摘要：#1.3 保存最后N个元素 from collections import deque def search(lines,pattern,history=5): previous_lines=deque(maxlen=history) for line in lines: if pattern in 阅读全文

摘要：# 1.2 从任意长度的可迭代对象中分解元素 import math #期末成绩去掉最高分和最低分，求平均分 def drop_first_last(grades): first, *middle, last = grades return middle lst1=[100,60,60,60,20] 阅读全文

摘要：#1.1将序列分解为单独的变量p = (4, 5)x, y = pprint(x, y)# 如果接收变量的数量与列表元素的数量不匹配则会报错#data = ['ACME', 50, 91.1, (2012, 12, 21)]name, shares, price, date = dataprint( 阅读全文