auto save

666.py

+a=['...\n','_ _ _\n','...\n']
+with open(r"c:\Users\Administrator\Desktop\hello.txt",'a',encoding='utf-8') as file:
+    file.writelines(a)
\ No newline at end of file

diy.py

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