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
-num_list = [1, 3, 5, 8, 11, 15, 17, 18, 20, 21]
+import random
+num_list = []
+num=random.randint(0,100)
+for i in range(100):
+    num_list.append(i)
 def x(alist,quest):
     low=0
     high=len(alist)-1
@@ -15,4 +19,4 @@ def x(alist,quest):
             break
         else:
             low=mid+1
-print(x(num_list,5))
\ No newline at end of file
+print(x(num_list,num))
\ No newline at end of file