Format code (#307)

Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>

Author: github-actions[bot]

infer-web.py

@@ -801,7 +801,8 @@ def train_index(exp_dir1, version19):
         index.add(big_npy[i : i + batch_size_add])
     faiss.write_index(
         index,
-        "%s/added_IVF%s_Flat_nprobe_%s_%s.index" % (exp_dir, n_ivf, index_ivf.nprobe, version19),
+        "%s/added_IVF%s_Flat_nprobe_%s_%s.index"
+        % (exp_dir, n_ivf, index_ivf.nprobe, version19),
     )
     infos.append(
         "成功构建索引，added_IVF%s_Flat_nprobe_%s_%s.index"