save project

diy.py

-with open(r'C:\Users\dell\Desktop\Book.txt','r',encoding='utf-8') as file1
+with open(r'C:\Users\dell\Desktop\Book.txt','r',encoding='utf-8') as file1:
     for data in file1:
     for data in file1:
         if '小强：10本' in data:
         if '小强：10本' in data:
             print('小强数据在文件中')
             print('小强数据在文件中')