[Bug fix] Import way to run

- Fix a bug that if you import the main app, especially when using gunicorn, you will miss some necessary initial operations. #216

latest version/main.py

@@ -170,7 +170,7 @@ def generate_log_file_dict(level: str, filename: str) -> dict:
     }
 
 
-def main():
+def pre_main():
     log_dict = {
         'version': 1,
         'root': {
@@ -208,6 +208,8 @@ def main():
         input('Press ENTER key to exit.')
         sys.exit()
 
+
+def main():
     if Config.LINKPLAY_HOST and Config.SET_LINKPLAY_SERVER_AS_SUB_PROCESS:
         from linkplay_server import link_play
         process = [Process(target=link_play, args=(
@@ -223,6 +225,9 @@ def main():
         tcp_server_run()
 
 
+# must run for init
+pre_main()
+
 if __name__ == '__main__':
     set_start_method("spawn")
     main()