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：16本'
-file1= open(r'C:\Users\Administrator\Desktop\book.txt','w',encoding='utf-8')
-file1.write('小兰:12本\n')
-file1.write('小丽:11本\n')
-file1.write('李文:9本\n')
-file1.write('张伟:16本\n')
-file1.close()
 
 
-with open(r'C:\Users\Administrator\Desktop\book.txt','a',encoding='utf-8') as file:
-    file.write('小强:10本\n')
-    file.write('李明:156本\n')
+with open(r'C:\Users\Administrator\Desktop\book.txt','r',encoding='utf-8') as file1:
+    for data in file1:
+        if '小强:10本' in data:
\ No newline at end of file
+            print('小强在数据中')
+        if '小兰:12本'in data:
+            print('小兰在数据中')