auto save

diy.py

+with open(r'/Users/qijiawen/Documents/lesson13-1/sales_list.txt','r',encoding='utf-8') as file1:
+    a = file1.readlines()
+#print(a[0:2])
+#print(type(a[3:5]))
+
+for i in a:
+    print(i)
\ No newline at end of file