auto save

.py

+file=open(r'C:\Users\Administrator\Desktop\book.txt','w',encoding='utf-8')
+file.write('银禹博:100')
+file.write('乔龙生:100')
+file.write('薛子怡：100')
+file.write('何明飞：100')
+file.write('文佳欣：100')
+file.close
\ No newline at end of file

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\book.txt','w',encoding='utf-8')
+#file.write('小兰:12本',)
+#file.write('小丽:11本',)
+#file.write('李文:9本',)
+#file.write('张伟:16本')
+#file.close()
+with open(r'C:\Users\Administrator\Desktop\book.txt','a',encoding='utf-8')as file:
+    file.write('小强:12本\n')
+    file.write('李明:15本\n')
\ No newline at end of file