Update app.py

app.py

@@ -52,7 +52,7 @@ try: nltk.data.find('tokenizers/punkt')
 except LookupError:
     logging.info("NLTK 'punkt' tokenizer not found. Downloading..."); nltk.download('punkt', quiet=True); logging.info("'punkt' downloaded successfully.")
 
-def split_by_punctuation(text: str, max_len: int = 25):
+def split_by_punctuation(text: str, max_len: int = 20):
     # (此函数不变)
     fragments = re.split(r'([,.:;!?。，、；：！？．…【】])', text); sentences = []
     temp_frag = ""