python统计不同字符个数|Python怎么实现统计文本文件字数

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word-wrap: break-word; margin: 5px 0px; color: rgb(0, 0, 0); font-family: " sans="" font-size:="" font-style:="" font-variant-ligatures:="" a="" href="/fw/photo.html" target="_blank" :="" font-weight:="" letter-spacing:="" orphans:="" text-align:="" text-indent:="" text-transform:="" white-space:="" widows:="" word-spacing:="" -webkit-text-stroke-width:="">本文实例讲述了Python实现统计文本文件字数的方法。分享给大家供大家参考，具体如下：

统计文本文件的字数，从当前目录下的file.txt取文件

# -*- coding: GBK -*-

importstring

importsys

reload(sys)

defcompareItems((w1,c1), (w2,c2)):

  ifc1 > c2:

    return-1

  elifc1==c2:

    returncmp(w1, w2)

  else:

    return1

defmain():

  fname="file.txt"

  try:

    text=open(fname,'r').read()

    text=string.lower(text)

  except:

    print"\nfile.txt is not exist!!! or There is a R/W error! "

    sys.exit()

  forchin'!"#$%&()*+,-./:;<=>?@[\\]^_`{|}~':

    text=string.replace(text, ch,' ')

  words=string.split(text)

  counts={}

  forwinwords:

    counts[w]=counts.get(w,0)+1

  n=input("\n输入要统计的top单词数:")

  items=counts.items()

  items.sort(compareItems)

  max=len(items)

  print"\n单词总计:"+str(len(words))

  print"单词净个数(已去重):"+str(max)

  print"\n"

  ifn >max:

    n=max

  foriinrange(n):

    print"%-10s%5d"%items[i]

if__name__=='__main__':

  main()

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