save project

diy.py

 with open(r'c:\Users\Administrator\Documents\lesson13-1\sales_list.txt','r',encoding='utf-8')as sb:
 with open(r'c:\Users\Administrator\Documents\lesson13-1\sales_list.txt','r',encoding='utf-8')as sb:
     a=sb.readlines()        
     a=sb.readlines()        
     #print(a)
     #print(a)
-    
+    sum=0
     for i in a:
     for i in a:
         b=i.split()
         b=i.split()
-        print(b[1:])
+        for c in b[1:]:
+            sum=sum+int(c)
+    print(sum)