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'
+# book=open(r"C:\Users\Administrator\Desktop\book.txt","w",encoding='UTF-8')
+# book.write('小兰：12本\n''小丽：11本\n''李文：9本\n''张伟：16本\n')
+# book.close()
+# with open(r"C:\Users\Administrator\Desktop\book.txt","a",encoding='UTF-8') as book:
+#     book.write('小强:12本\n''李明:15本\n')
+with open(r"C:\Users\Administrator\Desktop\book.txt","r",encoding='UTF-8') as test:
+    a=test.read()
+    print(a)
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