save project

diy.py

 
 with open(r'/Users/air/Desktop/sales_list.txt','r',encoding='utf-8') as b1:
     new_b=b1.readlines()
-for i in new_b:
-
-    
+new_lines=[]
+for i in new_b:   
     new_i=i.split()
     #print(new_i)
     #print(new_i[0])
@@ -11,5 +10,9 @@ for i in new_b:
     wangguangru=0
     for a in new_i[1:]:
         wangguangru=wangguangru+int(a)
-    new_name=new_i[0]+str(wangguangru)
-    print(new_name)
+    new_name=new_i[0]+str(wangguangru)+'\n'
+    new_lines.append(new_name)
+    
+
+with open(r'/Users/air/Desktop/new_sales_list.txt','a',encoding='utf-8') as My_wenjian:
+     My_wenjian.writelines(new_lines)