auto save

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：16本'
 file=open(r"C:\Users\Think\Desktop\新建文件夹\test.txt","w",encoding='utf-8')
-file.write('小兰：12本')
-file.close()
\ No newline at end of file
+file.write('小兰：12本\n')
+file.close()
+with open(r"C:\Users\Think\Desktop\新建文件夹\test.txt","r",encoding='utf-8')as file:
+    for date in file:
+        if "小兰" in date:
+            print(在)
+    
\ No newline at end of file