save project

diy.py

@@ -6,9 +6,20 @@
 # file.write('李文:9本')
 # file.write('张伟:16本')
 # file.close()
-with open(r'C:\Users\Administrator\Desktop\test.txt','r',encoding='utf-8') as file :
-    # file.write('小强:12本')
-    # file.write('李明:15本')
+# with open(r'C:\Users\Administrator\Desktop\test.txt','r',encodin g='utf-8') as file :
+#     # file.write('小强:12本')
+#     # file.write('李明:15本')
+# for data in file:
+#     if'小强:10本'in data:
+#     print('数据文件夹')
+new_data=''
+file=open(r'C:\Users\Administrator\Desktop\test.txt','w',encoding='utf-8')
+file.write('小强:10本')
+file.close()
+# with open(r'C:\Users\Administrator\Desktop\test.txt','r',encodin g='utf-8') as file :
+#     file.write('小强:10本')
 for data in file:
     if'小强:10本'in data:
-    print('数据文件夹')
\ No newline at end of file
+        str.replace('小强:10本','小强:11本')
+    new_data=data
+    print(new_data)