if __name__ == '__main__':
解释：https://zhuanlan.zhihu.com/p/21297237
'gbk' codec can't encode character 'u2b07' in position 17: illegal multibyte sequence
解答：s.decode('gbk', ‘ignore').encode('utf-8′) http://www.cnblogs.com/baiyuyang/archive/2011/10/29/2228667.html
或者添加 r.endcodding = r.apparent_endconding