save project

diy.py

 with open(r'c:\Users\邓美玲\Documents\lesson13-1\sales_list.txt','r',encoding='utf-8') as file:
 with open(r'c:\Users\邓美玲\Documents\lesson13-1\sales_list.txt','r',encoding='utf-8') as file:
     a = file.readlines()
     a = file.readlines()
 
 
+final_sum=[]
 for i in a:
 for i in a:
     data=i.split() #把字符串切分成更细的一个个的字符串
     data=i.split() #把字符串切分成更细的一个个的字符串
     sum=0                  #先把总钱数设为0
     sum=0                  #先把总钱数设为0