save project

diy.py

+with open(r'c:\Users\Administrator\Documents\lesson13-1\sales_list.txt','r',encoding='utf-8') as file:
+    a=file.read()
+    print(type(a[3:5]))
+

sales_list.txt

@@ -11,3 +11,4 @@
 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
+ 
\ No newline at end of file