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my_search.py

@@ -7,3 +7,14 @@ 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):
+    while low <= high:
+    =(+)//2
+    =
+    if  num== :
+        print("找到了,索引是",)
+        exit()    
+    elif  < :
+        =-1
+    else:
+        =+1
+print("没有这个数")
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