auto save

diy.py

-# 方法一：
-file=open(r'C:\Users\CM\Documents\lesson13-1\sales_list.txt','r',encoding='utf-8')
+with open(r'C:\Users\Administrator\Documents\lesson13-1\sales_list.txt',
+'r',encoding='utf-8') as file:
+    a=file.readlines()
+    #print(a)
 
-# 方法二：（注意结尾的英文冒号）
-with open(r'C:\Users\CM\Documents\lesson13-1\sales_list.txt','r',encoding='utf-8') as file:
\ No newline at end of file
+for i in a:
+    print(i)        
\ No newline at end of file