save project

diy.py

@@ -6,6 +6,11 @@
 #file1=open(r'C:\Users\合肥路 002\Desktop\book.txt','a',encoding='utf-8')
 #file1.write('小兰:12本\n')
 #file1.close()
-with file1(r'C:\Users\合肥路 002\Desktop\book.txt','a',encoding='utf-8')
-file1.write('小兰:12本\n')
-file1.close()
\ No newline at end of file
+new_data=''
+with file1(r'C:\Users\合肥路 002\Desktop\book.txt','a',encoding='utf-8')as
+file1:
+    for data in file1:
+       if '小强:10本' in data:
+            data=data.replace('小强:10本','小强:11本')
+            new_data + = data
+print(new_data)
\ No newline at end of file