Python 练习实例42

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题目:写一个函数,求一个字符串的长度,在main函数中输入字符串,并输出其长度。

# -*- coding: UTF-8 -*-

if __name__ == '__main__':
    s = raw_input('please input a string:\n')
    print 'the string has %d characters.' % len(s)

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