save project

diy.py

@@ -3,4 +3,8 @@ 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()
\ No newline at end of file
+file1.close()
+file=open(r'C:\\Users\\user\\Desktop\\book.txt','a',encoding='utf-8')
+file.write('小强:10本\n')
+file.write('李明:15本\n')
+file.close()
\ No newline at end of file