auto save

diy.py

@@ -6,4 +6,10 @@
 # 方法一：
 # 方法一：
 # file=open(r'C:\Users\CM\Documents\lesson13-1\sales_list.txt','r',encoding='utf-8')
 # file=open(r'C:\Users\CM\Documents\lesson13-1\sales_list.txt','r',encoding='utf-8')
 # 方法二：（注意结尾的英文冒号）
 # 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:
+# with open(r'C:\Users\CM\Documents\lesson13-1\sales_list.txt','r',encoding='utf-8') as 
\ No newline at end of file
+# file:
+    
+with openr('H:\桌面\sales_list.txt','r',encoding='utf-8')as 
+file:
+    a=file.read()
+    print(type(a[3:5]))
\ No newline at end of file