摘要：
def dict1(x): fen = open('words.txt') dict2 = dict() for line in fen: word=line.strip() dict2[word]='' print(dict2) if x in dict2: print('in') else: p 阅读全文
摘要：
def has_duplicates2(list): birthd = list[:] for i in birthd: count = 0 for j in birthd: if i == j: count= count+1 if count > 1: print('true2') return 阅读全文