python 3.7运行报错

安装完成后，运行报错：

- [ ] 代码：

from LAC import LAC
import pandas as pd
lac = LAC(mode='seg')
texts = pd.read_excel('data.xls')
seg_result = LAC.run(texts)

报错：
paddle.fluid.core_avx.EnforceNotMet:

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C++ Call Stacks (More useful to developers):
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Windows not support stack backtrace yet.

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Error Message Summary:
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Error: Cannot open file C:\Users\AppData\Roaming\Python\Python37\site-packages\LAC\seg_model\model/__model__ at (D:\1.8.2\paddle\paddle\fluid\inference\api\analysis_predictor.cc:703)

Start by reproducing the Python 3.7 Windows example beginning with `from LAC import LAC` and inspect the installed `LAC/seg_model/model/__model__` path named in the error. Check how the package locates this model during `LAC(mode='seg')`; done means the reported example runs without the missing-model error.

Written by the indexing model from the issue text.