save project

my_search.py

@@ -7,4 +7,19 @@ 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
+    num=20
+    high=len[]-1
+
+    while True:
+        mid=[low + high]//2
+        num=20
+        if num==list[mid]:
+            print("找到了")
+            return mid
+        elif num_list(mid):
+            high=mid-1
+        else:
+            low=mid+1 
+        print("没找到")