auto save

diy.py

+file=open(r'c:\Users\Administrator\Documents\lesson13-1\sales_list.txt','r',encoding='utf-8')
+a=file.readlines()
+print(type(a[3:5]))

new_sales_list.txt

+悟空348
+诺依380
+小贝182
+李丽201
+宋扬107
+王明245
+李强164
+孙小白222
+苏琪137
+刘若若147
+刘阳226
+王胜男123
+王娇131