1 #统计词频,可以根据需要统计句子或文本 2 txt = 'this is a student there is a bag' 3 words = txt.split() 4 dict = {} 5 for w in words: 6 if w not in dict: 7 dict[w] = 1 8 else: 9 dict[w] = dict[w] + 1 10 print dict