diff --git a/README.md b/README.md
index ddb9186..c1664bd 100644
--- a/README.md
+++ b/README.md
@@ -8,14 +8,10 @@ B站的热门榜数据具有极高的研究价值和应用前景。视频的播
 
 开发一个针对B站的爬虫项目，实现对B站数据的自动化抓取和分析，对于学术研究、商业分析还是个人兴趣探索都具有重要意义。
 
-
-
-![](assets/2024-04-26-10-47-09-image.png)
+<img src="assets/2024-04-26-10-47-09-image.png" title="" alt="" data-align="center">
 
 <center>良好的git分支管理</center>
 
 ![](assets/2024-04-26-10-50-50-image.png)
 
 <center>项目结构展示</center>
-
-
diff --git a/service/CsvService.py b/service/CsvService.py
index da73323..537889f 100644
--- a/service/CsvService.py
+++ b/service/CsvService.py
@@ -1,10 +1,12 @@
+from typing import List
+
 from service.IFileService import IFileService
 from entity.BilibiliVideo import BilibiliVideo
 from controller.SpyderController import SpyderController
 import csv
 
 class CsvService(IFileService):
-    def save(self, filePath, videoList: list[BilibiliVideo]):
+    def save(self, filePath, videoList: List[BilibiliVideo]):
         f = open(filePath+".csv", "w", encoding="GB18030", newline="")
         csv_writer = csv.writer(f)
         csv_writer.writerow(
diff --git a/service/ExcelService.py b/service/ExcelService.py
index 1f0b2c6..78a6f91 100644
--- a/service/ExcelService.py
+++ b/service/ExcelService.py
@@ -1,3 +1,5 @@
+from typing import List
+
 from service.IFileService import IFileService
 from entity.BilibiliVideo import BilibiliVideo
 
@@ -9,5 +11,5 @@ class ExcelService(IFileService):
         """
         pass
 
-    def save(self, filePath, videoList: list[BilibiliVideo]):
+    def save(self, filePath, videoList: List[BilibiliVideo]):
         raise NotImplementedError
diff --git a/service/IFileService.py b/service/IFileService.py
index ab4c576..fb4f25b 100644
--- a/service/IFileService.py
+++ b/service/IFileService.py
@@ -1,11 +1,12 @@
 from abc import abstractmethod, ABCMeta
+from typing import List
 
 from entity.BilibiliVideo import BilibiliVideo
 
 
 class IFileService(metaclass=ABCMeta):
     @abstractmethod
-    def save(self,filePath,videoList:list[BilibiliVideo]):
+    def save(self,filePath,videoList:List[BilibiliVideo]):
         """
         保存到文件，高级参数在init里面写
         :param filePath: 文件保存路径