save project

my_search.py

-import random
+import random       
 
 alist = []
 for i in range(1, 101):
@@ -6,4 +6,24 @@ for i in range(1, 101):
 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):
\ No newline at end of file
+def binary_search(alist,num):
+    low=0
+    high=len(alist)-1
+    while low<=high:
+        mid=(low+high)//2
+        guess=alist[mid]
+        if guess==mun:
+            return mid
+         elif guess>num:
+            low=mid+1
+         else:
+            high=mid-1   
+a=binary_search(alist,num) 
+print((a))         
+
+
+
+
+
+
+