save project

1.py

-file1=open(r'C:\Users\Lenovo\book.txt','w',encoding='utf-8')
-file1.write('小李:12本\n')
-file1.write('小陆:11本\n')
-file1.write('小傅:9本\n')
-file1.write('小王:16本\n')
-file1.close()
+file=open(r'C:\Users\Lenovo\book.txt','w',encoding='utf-8')
+file.write('小李:12本\n')
+file.write('小陆:11本\n')
+file.close()
+
+with open(r'C:\Users\Lenovo\book.txt','a',encoding='utf-8') as file:
\ No newline at end of file
+    file.write('小李:12本\n')
+    file.write('小陆:11本\n')