save project

1.py

-file=open(r"C:\Users\Administrator\Desktop\book.txt","w",encoding="utf-8")
-file.write("小兰:12本\n")
-file.write("小丽:11本\n")
-file.write("李文:9本\n")
-file.write("张伟:16本\n")
-file.close()
+# file=open(r"C:\Users\Administrator\Desktop\book.txt","w",encoding="utf-8")
+# file.write("小兰:12本\n")
+# file.write("小丽:11本\n")
+# file.write("李文:9本\n")
+# file.write("张伟:16本\n")
+# file.close()
\ No newline at end of file
+# 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") 
+with open(r"C:\Users\Administrator\Desktop\book.txt","r",encoding="utf-8") as file:
+    for data in file:
+        if "小强:10本" in data
+            print("强有")
+        if "小兰:12本" in data
+            print("兰在")
\ No newline at end of file