save project

diy.py

@@ -3,4 +3,9 @@ file1=open(r'C:\Users\Lenovo\Documents\test.txt','w',encoding='utf-8')
 file1.write('小兰:12本')
 file1.write('小兰:12本')
 file1.write('小丽:11本')
 file1.write('小丽:11本')
 file1.write('李文:9本')
 file1.write('李文:9本')
-file1.write('张伟:16本')
+file1.write('张伟:16本')
\ No newline at end of file
+with open(r'C:\Users\Lenovo\Documents\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