save project

diy.py

 with open(r'c:\Users\Windows 7\Documents\lesson13-1\sales_list.txt','r',encoding='utf-8')as file:
     a=file.readlines()
     #print(a)
+l=[]
 for i in a:
     #print(i)
     new_num=i.split()
@@ -9,7 +10,10 @@ for i in a:
     sum=0
     for d in new_num[1:]:
         sum=sum+int(d)
-    v=new_num[0]+str(sum)
+    v=new_num[0]+str(sum)+'\n'
+    l.append(v)
     print(v)   
+with open(r'C:\Users\Windows 7\Desktop\x.txt','w',encoding='utf-8')as g:
+    g.writelines(l)
 
 

fff.py

+a=['你好呀\n','悟空\n','我在贝尔编程学python\n']
+with open(r'C:\Users\Windows 7\Desktop\b.txt','w',encoding='utf-8')as file:
+    file.writelines(a)