save project

my_search.py

@@ -7,3 +7,31 @@ 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
 # 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):
 def binary_search(alist,num):
+    low=0
+    hlgh=len(alist)-1
+    while True:
+        mid=(low+hlgh)//2
+        sss=alist[mid]
+        if sss==num:
+            print("找到了")
+            break
+        elif sss>num:
+            hlgh=mid-1
+        else:
+            low=mid+1
+binary_search(alist,num)
+            
+        
+
+            
+               
+
+
+
+
+
+
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+