Python实现统计文本文件字数

# -*- coding: GBK -*- import string import sys reload(sys) def compareItems((w1,c1), (w2,c2)): if c1 > c2: return - 1 elif c1==c2: return cmp(w1, w2) else: return 1 def main(): fname="file.txt" try: text=open(fname,'r').read() text=string.lower(text) except: print " file.txt is not exist!!! or There is a R/W error! " sys.exit() for ch in '!"#$%&()*+,-http://www.jsgho.com/help/fwq/:;<=>?@[\\]^_`{|}~': text=string.replace(text, ch, ' ') words=string.split(text) counts={} for w in words: counts[w]=counts.get(w,0) + 1 n=input(" 输入要统计的top单词数:") items=counts.items() items.sort(compareItems) max=len(items) print " 单词总计:" + str(len(words)) print "单词净个数(已去重):" + str(max) print " " if n > max: n=max for i in range(n): print "%-10s%5d" % items[i] if __name__=='__main__': main()