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'
+file1=open(r'C:\Users\Administrator\Desktop\test.txt','w',encoding='utf-8')
+file1.write('曹狗蛋、9999999999999999999999999999999999999999999999999999999999999999999999999999999999本')
+file1.close()
+with open(r'C:\Users\Administrator\Desktop\test.txt','a',encoding='utf-8') as file1:
+    file1.write('曹狗蛋、9999999999999999999999999999999999999999999999999999999999999999999999999999999999本\n')
+    for data in file1:
+        if '曹狗蛋、9999999999999999999999999999999999999999999999999999999999999999999999999999999999本' in data:
+            print('数据在文件中')