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\Administrator\Desktop\新建文本文档.txt","r",encoding="UTF-8") as file:
+    for data in file:
+        if "小丽:11本" in data:
+            data=data.replace("小丽:11本","小丽:3本")
+        new_data=new_data+data    
+with open(r"C:\Users\Administrator\Desktop\新建文本文档.txt","w",encoding="UTF-8")as file:
+    file.write(new_data)                
\ No newline at end of file