auto save

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'
+SB = open(r'C:\Users\蒋子皓\Desktop\test.txt','a',encoding='utf-8')
+SB.write('小兰：12\n')
+SB.close()
+#

shj.py

+with open(r'C:\Users\蒋子皓\Desktop\test.txt','r',encoding='utf-8')  as file:
+    a = file.read()
+    print(a)
\ No newline at end of file