save project

diy.py

 with open(r'c:\Users\Administrator\Documents\lesson13_2\sales_list.txt','r',encoding='utf-8') as file:
 with open(r'c:\Users\Administrator\Documents\lesson13_2\sales_list.txt','r',encoding='utf-8') as file:
     a=file.readlines()
     a=file.readlines()
-
+final_sun=[]
 for i in a:                 #用for…in…把每一行的数据遍历
 for i in a:                 #用for…in…把每一行的数据遍历
-data=i.split()         
-sun=0
-for sales in data[1:]:
+    data=i.split()         
+    sun=0
+    for sales in data[1:]:
 		sun=sun+int(sales)
 		sun=sun+int(sales)
-result=data[0]+str(sun)
-print(result)
- 
+    result=data[0]+str(sun)+'\n'
+    final_sun.append(result) 
+ with open(r'c:\Users\Administrator\Documents\lesson13_2\sales_list.txt','a',encoding='utf-8') as file:
+     file.writelines(final_sun)