python統(tǒng)計(jì)文本中的單詞數(shù)和print的兩種寫法

#!/usr/bin/python
# - * - coding: utf-8 - * -
#作用，分別計(jì)算每個(gè)文本的單詞數(shù)，并且輸出所有文本的單詞總數(shù)
a = []
sum = 0
def count_words(filename):
#filename = '1.txt'
 try:
  with open(filename) as file_object:
   t = file_object.read()
 except IOError:
  print 'you have' + ' ' + filename + ' is not exist!'
 else:
  words = t.split()
  numbers = len(words)
  a.append(numbers)
    #print的兩種寫法，可以帶逗號，后面直接跟參數(shù)值。也可以不帶逗號，后面直接跟%參數(shù)值
  print 'danci de geshi yigong shi %d'  %numbers
#    #print 'danci de geshi yigong shi' , numbers

filenames = [ '1.txt','2.txt','3.txt' ]
for filename in filenames:
 count_words(filename)

for i in a:
 sum += int(i)
print sum
#兩種寫法，一個(gè)是用sum計(jì)數(shù)，一個(gè)用sum函數(shù)，
#sum的參數(shù)是一個(gè)list，這里a就是list
#print '所有單詞總數(shù)為' + str(sum(a))

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