save project

diy.py

-# 写入同学们的捐赠明细：'小兰：12本'、'小丽：11本'、'李文：9本'、'张伟：16本'
+new_data=''
+with open(r'c:\users\cm\Desktop\book.txt','a',encoding='utf-8') as file:
+   for data in filel: 
+      if'小强:10本'in data:
+          data=data.replace('小强:10本','小强:11本')
+       if'小兰:12本'in data:    
+          data=data.replace('小强:10本','小强:11本')
\ No newline at end of file