save project

diy.py

 with open(r'C:\Users\Think\Desktop\新建文件夹\新建文本文档.txt','a',encoding='utf-8') as file:
 with open(r'C:\Users\Think\Desktop\新建文件夹\新建文本文档.txt','a',encoding='utf-8') as file:
     for data in  filel:
     for data in  filel:
        if '小强: 10本' in data:
        if '小强: 10本' in data:
-            print('小强数据在文件中')
-       if '小名: 15本' in data:
-            print('小名数据在文件中')
-
-
+           data=data.replace('小强. 10本','小强. 11本') 
+       if '小兰: 15本' in data:
+           data=data.replace('小强. 12本','小强. 14本')
 
 
+      filel.write(new_data)