auto save

diy.py

-
+with open('C:\\Users\\Administrator\\ocuments\\lesson13-1\\sales_list.txt',(r),encoding='utf-8')as file:
+    # 读取数据
+    a = file.read()
+    # 字符串切片，查看数据类型
+    print(type(a[3:5]))
\ No newline at end of file

sales_list.txt

@@ -11,5 +11,3 @@
 刘阳 11 15 22 11 23 26 22 15 17 52 12
 王胜男 27 15 15 26 13 12 15
 王娇 12 11 12 12 15 35 23 11
-
-C:\Users\Administrator\Documents\lesson13-1\sales_list.txt
\ No newline at end of file