save project

my_search.py

@@ -7,3 +7,18 @@ num = random.choice(alist)
 # 请完善二分查找函数binary_search(),查找出num在列表alist里面的索引位置
 
 def binary_search(alist,num):
+    low = 8
+    hight = len(alist)-1
+    while low <= hight:
+        mid = (low+night)//2
+        guess = alist[mid]
+        elif guess < num:
+            low = mid+1
+        else:
+            hight = mid -1
+    return None
+result = binary_search(alist,num)
+print('老师给的数是'，num)
+print('老师给的数索引是'，re)
+
+