fix script bug

main.py

+# -*- coding: utf-8 -*-
 from json import load
 from src.tree import TreeWalker, load_json, dump_json
 

src/tree.py

+# -*- coding: utf-8 -*-
 import logging
 from genericpath import exists
 import json
@@ -16,7 +17,7 @@ logger.addHandler(handler)
 
 
 def load_json(p):
-    with open(p, 'r') as f:
+    with open(p, 'r', encoding='utf-8') as f:
         return json.loads(f.read())
 
 
@@ -29,7 +30,7 @@ def dump_json(p, j, exist_ok=False, override=False):
             logger.error(f"{p} already exist")
             sys.exit(0)
 
-    with open(p, 'w+') as f:
+    with open(p, 'w+', encoding='utf-8') as f:
         f.write(json.dumps(j, indent=2, ensure_ascii=False))