save project

diy.py

@@ -4,9 +4,17 @@
 # file1.close()
 # file1.close()
 # with open(r"C:\Users\Administrator\Desktop\test.txt","a",encoding='UTF-8')as file:
 # with open(r"C:\Users\Administrator\Desktop\test.txt","a",encoding='UTF-8')as file:
 #     file1.write("'小黄，44本\n'")
 #     file1.write("'小黄，44本\n'")
+# with open(r"C:\Users\Administrator\Desktop\test.txt","r",encoding='UTF-8')as file:
+#     for data in file1:
+#         if '小强:10本' in data:
+#             print('数据在文件中')
+#         if '小兰:12本' in data:
+#             print('数据在文件中')
+new_data="
 with open(r"C:\Users\Administrator\Desktop\test.txt","r",encoding='UTF-8')as file:
 with open(r"C:\Users\Administrator\Desktop\test.txt","r",encoding='UTF-8')as file:
     for data in file1:
     for data in file1:
         if '小强:10本' in data:
         if '小强:10本' in data:
-            print('数据在文件中')
-        if '小兰:12本' in data:
-            print('数据在文件中')
+            data=data.peplace('小强：10本','小强：11本')
+        new_data+=data
+with open(r"C:\Users\Administrator\Desktop\test.txt","w",encoding='UTF-8')as file:
\ No newline at end of file
+    file1.write(new_data)
\ No newline at end of file