modify app_with_key.py

app_with_key.py

@@ -35,9 +35,9 @@ example_company =['介绍下贵州茅台,这公司是干什么的,主营业务
 class Client:
     def __init__(self) -> None:
         self.OPENAI_KEY = OPENAI_KEY
-        self.OPENAI_API_BASED_AZURE = None
-        self.OPENAI_ENGINE_AZURE = None
-        self.OPENAI_API_KEY_AZURE = None
+        self.OPENAI_API_BASED_AZURE = ''
+        self.OPENAI_ENGINE_AZURE = ''
+        self.OPENAI_API_KEY_AZURE = ''
         self.stop = False  # 添加停止标志
 
     def set_key(self, openai_key, openai_key_azure, api_base_azure, engine_azure):