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   源码介绍

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python对于文件和异常的处理

def count_word(filename):
    try:
        with open(filename) as f_obj:
            contents = f_obj.read()
    except FileNotFoundError:
        #msg = "Sorry, the file " filename " does not exist."
        #print(msg)
        pass
    else:
        num_words = len(contents.split())
        print("The file " filename " has about " str(num_words) " words.")
filenames = ['alice.txt','pi_digits.txt','123.txt','programing.txt']
for filename in filenames:
    count_word(filename)