save project

diy.py

+# filel=open(r"C:\Users\Administrator\Desktop\test.txt",'w',encoding='utf-8')
+# filel.write('小兰:12本\n')
+# filel.write('小丽:11本\n')
+# filel.write('李文:9本\n')
+# filel.write('张伟:16本\n')
+# filel.close()
+
+# with pen(r"C:\Users\Administrator\Desktop\test.txt",'a',encoding='utf-8')as file:
+#     file.write('小强:10本\n')
+#     file.write('李明:15本\n')
+with open(r"C:\Users\Administrator\Desktop\test.txt",'r',encoding='utf-8')as filel:
+    for data in filel:
+        if'小强:10本'in data:
+            print('小强数据在文件中')
+        if '小兰:12本'in data:
+            print('小兰数据在文件中')    
+    
+
+
+
+