Update toolbox.py

toolbox.py

@@ -472,7 +472,7 @@ def extract_archive(file_path, dest_dir):
                 print("Successfully extracted rar archive to {}".format(dest_dir))
         except:
             print("Rar format requires additional dependencies to install")
-            return '\n\n解压失败! 需要安装pip install rarfile来解压rar文件'
+            return '\n\n解压失败! 需要安装pip install rarfile来解压rar文件。建议：使用zip压缩格式。'
 
     # 第三方库，需要预先pip install py7zr
     elif file_extension == '.7z':