Update app_utils.py

app_utils.py

@@ -39,7 +39,7 @@ def initialize_knowledge_base():
     loader = DirectoryLoader('profiles', glob='**/*.txt') #文件夹加载器 profiles文件夹下的所有txt文件
     docs = loader.load()
 
-    char_text_splitter = CharacterTextSplitter(chunk_size=1000, chunk_overlap=0) #文本分割器 chunk_size=1000, chunk_overlap=0
+    char_text_splitter = CharacterTextSplitter(chunk_size=2048, chunk_overlap=0) #文本分割器 chunk_size=1000, chunk_overlap=0
     doc_texts = char_text_splitter.split_documents(docs) #文档分割器，作用是将文档分割成小块
 
     # Embed each chunk of text