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'
+#p=open(r"C:\Users\86131\Desktop\book.txt","w",encoding="utf-8")
+#p.write("小兰:12本 \n 小丽:11本 \n 李文:9本 \n 张伟:16本")
+#p.close()
+with open(r"C:\Users\86131\Desktop\test.txt","r",encoding="utf-8") as p:
+    for i in p:
+        if "小兰，12本" in p:
+            print("在")
+        else:
+            print("不在")
+        if "小强,10本" in p:
+            print("在")
+        else:
+            print("不在")
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