save project

diy.py

+liend=[]
+with open(r"C:\Users\liyf2\Desktop\sales_list.txt","r",encoding="UTF-8")as file:
+    
+    a=file.readlines()
+    for i in a:
+        #print(i)
+        data=i.split()
+        #print(na[1:])
+        sum=0
+        for sales in data[1:]:
+            sum=sum+int(sales)
+        print(data[0]+str(sum))
+        liend.append(data[0]+str(sum))
+
+with open(r"C:\Users\liyf2\Desktop\sales_list.txt",'a',encoding='UTF-8')as file:
+    file.writelines(liend)
\ No newline at end of file