save project

diy.py

-with open(r'C:\Users\Administrator\Desktop\新建文件夹\test.txt','r',encoding='utf-8')as file1:
-    for data in file1:
-        if'小强:10本'in data:
-            print('数据在文件中')
-        else:
-            print('数据不在文件中')
\ No newline at end of file
+with open(r'C:\Users\Administrator\Desktop\新建文件夹\test.txt','a',encoding='utf-8')as file:
+    file.write('小强：12本')# 写入同学们的捐赠明细：'小兰：12本'、'小丽：11本'、'李文：9本'、'张伟：16本')