save project

binary_search.py

-# 使用二分查找法，找出9和20在列表里面的索引
-bingo_num =11
-num_list = [1, 3, 5, 8, 11, 15, 17, 18, 20, 21]
+import random
+alist = []
+for i in range(1,101):
+    alist.append(i)
+num = random.choice(alist)
 def bin_search(alist,num):
 def bin_search(alist,num):
     low = 0
     low = 0
     high = len(alist)-1
     high = len(alist)-1
@@ -14,9 +16,9 @@ def bin_search(alist,num):
         else:
         else:
             high = mid - 1
             high = mid - 1
     return None
     return None
-
-
-
+result = binary_search(alist,num)
+print("给的数:",num)
+print("索引:",result)