save project

diy.py

-with open(r"C:\Users\ASUS\Desktop\捐赠明细.txt","w",encoding="utf-8")as file
-    file.write("小兰：12本")
+with open(r"C:\Users\ASUS\Desktop\捐赠明细.txt","a",encoding="utf-8")as file:
+
+    file.write("小狗：12本\n小猪：20")
+    file.write("小来：12本")