save project

bug.py

@@ -7,7 +7,10 @@ file.close()
 with open("C:\\Users\\Administrator\\Desktop\\test.txt",'a',encoding='utf-8') as file:
     file.write('小强:12本')
     file.write('李明:15本')
+new_data=''
 with open("C:\\Users\\Administrator\\Desktop\\test.txt",'r',encoding='utf-8') as file:
-    for i in file:
-        if '小强:12本'in i:
-            print("数据在")
\ No newline at end of file
+    for data in file:
+        if '小强:12本'in data:
+            data=data.replace('小强:12本','小强:11本')
+        new_data +=data
+print(new_data)