save project

diy.py

 a=open(r'c:\Users\周\Documents\lesson13-1\sales_list.txt','r',encoding='utf-8')
 a=open(r'c:\Users\周\Documents\lesson13-1\sales_list.txt','r',encoding='utf-8')
 aa=a.readlines()
 aa=a.readlines()
+lq=[]
 for i in aa:
 for i in aa:
     b=i.split()
     b=i.split()
     c=0
     c=0
     for sales in b[1:]:
     for sales in b[1:]:
         c=c+int(sales)
         c=c+int(sales)
-        f=b[0]+str(c)
-    print(f)
+        f=b[0]+str(c)+"\n"
+    lq.append(f)
\ No newline at end of file
+with open(r'c:\Users\周\Documents\lesson13-1\sales_list.txt','a',encoding='utf-8') as file:
+    file.writelines(lq)
\ No newline at end of file