随用随记
读取stop_words
BASE_DIR = os.path.dirname(os.path.abspath(__file__))
stop_words = set(open(os.path.join(BASE_DIR, 'stopwords.txt'), 'r').read().split())
字符串bu前缀转换
u'V' 与 'V'和u'\u0056'等价，即Unicode码,类型为string
b'\x56' 与 b'V'等价，但只能放ASCII码，否则会报错,类型为bytes
b = str.encode('V') # u 2 b
a = bytes.decode(b'V') # b 2 u