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'
-file=open(r"C:\Users\Administrator\Desktop\新建文本文档.txt","w",encoding="UTF-8")
-file.write("小兰:12本")
-file.close()
+with open(r"C:\Users\Administrator\Desktop\新建文本文档.txt","a",encoding="UTF-8") as file: 
+    file.write('\n小兰：12本')