save project

13.2.py

 with open("c:\\Users\\玛酷\\Desktop\\sales_list.txt","r",enciding=utf-8) as b:
 with open("c:\\Users\\玛酷\\Desktop\\sales_list.txt","r",enciding=utf-8) as b:
     a=b.readlines()
     a=b.readlines()
-    a=[]
+    c=[]
 for i in a:
 for i in a:
     data=i.split()
     data=i.split()
     sum=0
     sum=0
     for seles in data[1:]:
     for seles in data[1:]:
         sum=sum+int(seles)
         sum=sum+int(seles)
     result=data[0]+str(sum)+"\n"
     result=data[0]+str(sum)+"\n"
-    a.append(result)
+    c.append(result)
 with open("c:\\Users\\玛酷\\Desktop\\sales_list.txt","a",enciding=utf-8) as b:
 with open("c:\\Users\\玛酷\\Desktop\\sales_list.txt","a",enciding=utf-8) as b:
-    b.writelines(a)
+    b.writelines(c)
\ No newline at end of file