python笔记 杨辉三角 只能用奇妙来形容了 :smile: def triangle(): L =[1] while True: b=L.copy() yield b L.append(0) L=[L[i]+L[i-1] for i in range(len(L))] 1012 翻转字符串 >>> def reverseWords(input): ... inputWords = input.split(" ") ... inputWords = inputWords[-1::-1] ... output = ' '.join(inputWords) ... return output ... >>> input = 'I like runnob' >>> rw = reverseWords(input) >>> rw 'runnob like I' 集合的使用 #!/usr/bin/python3 sites = {'Google', 'Taobao', 'Runoob', 'Facebook', 'Zhihu', 'Baidu'} print(sites) # 输出集合,重复的元素被自动去掉 # 成员测试 if 'Runoob' in sites : print('Runoob 在集合中') else : print('Runoob 不在集合中') # se……
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