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my_search.py

@@ -7,4 +7,12 @@ 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=0
+        if num == num_list[mid]:
+            print("是",mid)
+        elif mid==alist[mid]:
+            high=mid-1
+        else:
+            low=mid+1
         
+binary_search(num(29 ))
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