auto save

diy.py

+with open(r'c:\Users\Student-A09\Documents\lesson13-1\sales_list.txt', 'r',encoding='utf-8')as file:
+    a=file.readlines()
+   # print(a)  
+
+
+
+
+final_sum=[]
+for i in a:
+    data=i.split()
+   # print(data[1:]) 
+    sum=0
+    for b in data[1:]:
+        sum = sum + int(b)
+    result=data[0]+str(sum)+"\n"
+    final_sum.append(result)
+with open(r'C:\Users\Student-A09\Desktop\新建文本文档.txt', 'a',encoding='utf-8')as file:
+    file.writelines(final_sum)     
+
+    
+#"C:\Users\Student-A09\Desktop\新建文本文档.txt"
+