save project

diy.py

@@ -8,13 +8,11 @@
 new_data=''
 with open(r'C:\Users\Administrator\Desktop\book.txt','r',encoding='utf-8') as file1:
     for data in file1:
-        if '小强：10本' in data:
-            print('在')
         if '小兰：12本' in data:
-            print('在')
+           data=data.replace('小兰：12本','小兰：14本')
         new_data+=data
 
-with open(r'C:\Users\Administrator\Desktop\book.txt','r',encoding='utf-8') as file1:
+with open(r'C:\Users\Administrator\Desktop\book.txt','w',encoding='utf-8') as file1:
     file1.write(new_data)
 with open(r'C:\Users\Administrator\Desktop\book.txt','r',encoding='utf-8') as file1:
     a=file1.read()