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]))
\ No newline at end of file

sales_list.txt

@@ -10,4 +10,11 @@
 刘若若 11 11 13 11 20 15 13 29 24 
 刘若若 11 11 13 11 20 15 13 29 24 
 刘阳 11 15 22 11 23 26 22 15 17 52 12
 刘阳 11 15 22 11 23 26 22 15 17 52 12
 王胜男 27 15 15 26 13 12 15
 王胜男 27 15 15 26 13 12 15
-王娇 12 11 12 12 15 35 23 11
+王娇 12 11 12 12 15 35 23 11
\ No newline at end of file
+with open(r'C:\Users\Administrator\Documents\lesson13-1>\sales_list.txt','r',encoding='utf-8')as file:
+    a=file.readlines()
+    print(type(a[3:5]))
+    print(a)
+for i in a:
+    print(i)
+