tweak dfs

csst_common/dfs.py

+"""
+Identifier:     csst_common/dfs.py
+Name:           dfs.py
+Description:    csst_common package
+Author:         Bo Zhang
+Created:        2023-07-08
+Modified-History:
+    2023-07-08, Bo Zhang, implemented DFS
+    2023-07-11, Bo Zhang, updated DFS
+    2023-12-08, Bo Zhang, tweaks
+"""
+
 from csst_dfs_api.common.catalog import CatalogApi
 from csst_dfs_api.facility.level0 import Level0DataApi
 from csst_dfs_api.facility.level0prc import Level0PrcApi
@@ -8,11 +20,6 @@ from csst_dfs_api.mbi import Level2CoApi
 from csst_dfs_api.mbi.level2 import Level2DataApi as MbiLevel2DataApi
 from csst_dfs_api.sls.level2spectra import Level2SpectraApi as SlsLevel2DataApi
 
-"""
-1. DFS 配置
-2. 接口retry功能
-"""
-
 
 class DFS:
     def __init__(self, n_try=5):