save project

1.py

 # C:\Users\ThinkPad\Desktop
+new_data=''
 with open(r'C:\Users\ThinkPad\Desktop\test.txt','r',encoding='utf-8') as file1:
     for data in file1:
-        print(data)
\ No newline at end of file
+        if '小兰:10本' in data:
+            data=data.replace('小兰:10本','小兰:13本')
+        new_data +=data
+with open(r'C:\Users\ThinkPad\Desktop\test.txt','w',encoding='utf-8') as file1:
+    file1.write(new_data)
+    
\ No newline at end of file