auto save

diy.py

-with open(r'c:\Users\Administrator\Documents\lesson13-4\sales_list.txt','r',encoding='utf-8')as file:
-    a=file.readlines()
-final=[]
-for i in a:
-    data=i.split()
-    sum=0
-    for sales in data[1:]:
-        sum=sum+int(sales)
-    result=data[0]+str(sum)+'\n'
-    final.append(result)
-with open(r'c:\Users\Administrator\Documents\lesson13-4\new_list.txt','w',encoding='utf-8')as file:
-    file.writelines(final)
-    print('写入完成')  
\ No newline at end of file
+poem=['此情可待成追忆\n','只是当时已惘然']
+with open('锦瑟.txt','w',encoding='utf-8') as filt:
+     filt.writelines(poem)
\ No newline at end of file

锦瑟.txt

+此情可待成追忆
+此情可待成追忆
+只是当时已惘然
\ No newline at end of file