save project

diy.py

-'''
 with open(r'C:\Users\Administrator\Documents\lesson13-1\sales_list.txt','r',encoding='utf-8') as file:
 with open(r'C:\Users\Administrator\Documents\lesson13-1\sales_list.txt','r',encoding='utf-8') as file:
     a=file.readlines()
     a=file.readlines()
+final_sum=[]
 for i in a:
 for i in a:
     data=i.split()
     data=i.split()
     sum=0
     sum=0
     for sales in data[1:]:
     for sales in data[1:]:
         sum=sum+int(sales)
         sum=sum+int(sales)
-    result = data[0]+str(sum)
-    print(result)
-'''
-a=['你好呀\n','悟空\n','我在贝python\n']
-with open(r'C:\Users\Administrator\Desktop.txt','a',encoding='utf-8') as file:
+    result = data[0]+str(sum)+'\n'
+    final_sum.append(result)
+with open(r'C:\Users\Administrator\Desktop_list.txt','r',encoding='utf-8') as file:
+    file.writelines(final_sum)
\ No newline at end of file
-    file.writelines(a)
\ No newline at end of file