auto save

diy.py

-with open(r'/Users/xuechenghan/Desktop/sales_list.txt,'r',encoding=utf-8) as file:
\ No newline at end of file
+with open(r'C:/Users/xuechenghan/Desktop/sales_list.txt,'r',encoding='utf-8') as file:
+a=file.readlines()
+print(a) 

sales_list.txt

@@ -6,10 +6,9 @@
 李强 1 11 11 11 15 17 11 20 
 王明 302 12 5 22 11 23 26 22 15 17 52 12
 王胜男 27 15 15 26 13 12 15
-11 15 11 13 25 26 11 13 15
+一只猪 11 15 11 13 25 26 11 13 15
 孙小白 25 26 12 15 27 30 48 39
 苏琪 15 11 15 15 30 13 27 11 
 刘若若 11 11 13 11 20 15 13 29 24 
-刘阳 11 1
-王娇 12 11 1 
-/Users/xuechenghan/Desktop/sales_list.txt
\ No newline at end of file
+刘阳 11 1 56 38 94 78
+王娇 12 11 1 14 19
\ No newline at end of file