获取srt 优化

common/srt.py

@@ -51,11 +51,14 @@ class SRT():
         code = data_list["code"]
         if code == 0:
             srt = data_list["data"]
-            srt = srt.replace("/n", "\n")
-            # srt = re.sub(r'(\w+)([,。!?])', r'\n\n', srt)
-            new_srt = cls.process_srt(srt)
-            return new_srt
+            if srt:
+                srt = srt.replace("/n", "\n")
+                # srt = re.sub(r'(\w+)([,。!?])', r'\n\n', srt)
+                new_srt = cls.process_srt(srt)
+                return new_srt
+            else:
+                return None
         else:
-            return ""
+            return None