save project

diy.py

 file1=open(r'd:\test.txt','w',encoding='utf-8')
 file1=open(r'd:\test.txt','w',encoding='utf-8')
-file1.write("小兰，12本")
+file1.write("小兰，12本\n")
+file1.write("小强，10本\n")
+file1.write("李明，15本\n")
 file1.close()
 file1.close()
\ No newline at end of file