save project

diy.py

-file1=open(r'')
+file1=open(r'C:\Users\马潇\\Desktop\\book.txt.'w'encoding='utf-')
+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