save project

diy.py

@@ -7,5 +7,5 @@ for i in a:
     for a in data[1:]:
         sum+=int(a)
     fisum.append(data[0]+str(sum))
-with open(r"c:\Users\0\Documents\lesson13-1\new_list.txt","r",encoding="utf-8") as f:
+with open(r"c:\Users\0\Documents\lesson13-1\new_list.txt","a",encoding="utf-8") as f:
     f.writelines(fisum)
\ No newline at end of file