save project

diy.py

 # 写入同学们的捐赠明细：'小兰：12本'、'小丽：11本'、'李文：9本'、'张伟：                 
-with open(r'C:\Users\mkjqr\Desktop\book.txt','w',encoding='utf-8') as file:
-    file1.write('小兰:12本\n')
\ No newline at end of file
+with open(r'C:\Users\mkjqr\Desktop\book.txt','rr',encoding='utf-8') as file1:
+    for data in file1:
+        if '小强：10本' in data:
+           print('在')
\ No newline at end of file