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'
-with open(r'C:\Users\Administrator\Desktop\test.txt','a',encoding='utf-8')as file1:
-    file1.write('小强:12本\n')
-    file1.write('李明:15本\n')
\ No newline at end of file
+with open(r'C:\Users\Administrator\Desktop\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')
\ No newline at end of file