auto save

diy.py

+with open(r'c:\Users\Admin\Desktop\sales_list.txt','r',encoding='utf_8') as rtw:
+    a=rtw.readlines()
+    B=[]
+    for i in a:
+        ii=i.split()
+        s=0
+        for x in ii[1:]:
+            s=s+int(x)
+            r=ii[0]+str(s)+"\n"
+        B.append(r)
+
+
+with open(r'c:\Users\Admin\Desktop\新建文本文档 (2).txt','a',encoding='utf_8') as rtw:
+    rtw.writelines(B)
\ No newline at end of file