save project

diy.py

-with=open(r'c:\Users\Administrator\Documents\lesson13-1\sales_list.txt','r',encoding='utf-8')as file1:
+with open(r'c:\Users\Administrator\Documents\lesson13-1\sales_list.txt','r',encoding='utf-8')as file1:
     a=file1.readline()
+    file1_sum=[]
     for i in a:
         data=i.split()
         print(data[0])
@@ -10,4 +11,7 @@ with=open(r'c:\Users\Administrator\Documents\lesson13-1\sales_list.txt','r',enco
         for sales in data[1:]:
             sum=sum+int(sales)
             readline=data[0]+str(sum)
-    print(sum)       
\ No newline at end of file
+    print(sum)  
+        file1_sum.append(readline)
+with open(r'c:\Users\Administrator\Documents\lesson13-1\sales_list.txt','w',encoding='utf-8')as file1: 
+    file1.writelines(file1_sum)       
\ No newline at end of file