本期圍繞jieba講乙個我遇到的實際問題，在同乙個服務裡，存在兩個不同介面a和b，都用到了jieba分詞，區別在於兩者需要呼叫不同的詞庫，巧合中，存在以下情況：
詞庫a："幹拌麵"
詞庫b："乾拌","面"
介面a中：
jieba.load_userdict("a.txt")jieba.load_userdict("b.txt")building prefix dict from the default dictionary ...
dumping model to file cache /var/folders/hv/kfb7n4lj06590hqxjv6f3dd00000gn/t/jieba.cache
loading model cost 0.824 seconds.
prefix dict has been built succesfully.
我是這麼處理的：
介面a中：
jieba1 = jieba.tokenizer(dictionary="a.txt")jieba2 = jieba.tokenizer(dictionary="b.txt")in [1]: import jieba
in [2]: jieba1=jieba.tokenizer(dictionary="a.txt")
in [3]: jieba2=jieba.tokenizer(dictionary="b.txt")
in [4]: jieba1.lcut("幹拌麵")
building prefix dict from /users/slade/desktop/a.txt ...
dumping model to file cache /var/folders/hv/kfb7n4lj06590hqxjv6f3dd00000gn/t/jieba.u5221c1b70f06b36e44bc519f39715c96.cache
loading model cost 0.006 seconds.
prefix dict has been built succesfully.
out[4]: ['幹拌麵']
in [5]: jieba2.lcut("幹拌麵")
building prefix dict from /users/slade/desktop/b.txt ...
dumping model to file cache /var/folders/hv/kfb7n4lj06590hqxjv6f3dd00000gn/t/jieba.uc4f38d90bf7ce748744ff94fb2863fe4.cache
loading model cost 0.003 seconds.
prefix dict has been built succesfully.
out[5]: ['乾拌', '面']
def gen_pfdict(self, f):
lfreq = {}
ltotal = 0
f_name = resolve_filename(f)
for lineno, line in enumerate(f, 1):
try:
line = line.strip().decode('utf-8')
word, freq = line.split(' ')[:2]
freq = int(freq)
lfreq[word] = freq
ltotal += freq
for ch in xrange(len(word)):
wfrag = word[:ch + 1]
if wfrag not in lfreq:
lfreq[wfrag] = 0
except valueerror:
raise valueerror(
'invalid dictionary entry in %s at line %s: %s' % (f_name, lineno, line))
f.close()
return lfreq, ltotal
word, freq = line.split(' ')[:2]決定了這邊需要加上，這個依賴於版本，我並沒有實驗不同版本。
a.txt:
幹拌麵 1乾拌 1
面 1
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