save project

binary_search.py

@@ -18,8 +18,8 @@ def binary_search(alist,num):
             high = mid-1
         return None
 result = binary_search(alist,num)
-print("",num)
-print("",result)
+print("老师给的数是",num)
+print("它在列表里的索引是",result)