auto save

diy.py

 with open(r'c:\Users\小爱\Documents\lesson13-1\sales_list.txt','r',encoding='utf-8') as file:
     a=file.readlines()
-    #print()
-final_sum=[]
-for i in a:
+    print(w)
+for i in w:
     #print(i)
     b=i.split()
     #print(b[0],b[1:])
     sum=0
     for s in b[1:]:
-        sum=sum+int(s)
-    result=b[0]+str(sum)+'\n'
-    final_sum.append(result)
-    #print(result)
-with open(r"C:\Users\小爱\Desktop\SB.txt",'w',encoding='utf-8') as file:
-    file.writelines(final_sum)
\ No newline at end of file
+        sum=sum+int(1)
+    result=b[0]+str(sum)
+    print(result)