save project

binary_search.py

@@ -4,8 +4,8 @@ low=0
 num=9
 high=len(num_list)-1
 
-
-while low<=high:
+def 
+    while low<=high:
         mid=(low+high)//2
         guss1=num_list[mid]
         if num==guss1 :
@@ -15,4 +15,4 @@ while low<=high:
             low=mid+1
         else:
             high=mid-1
-print('没有')
\ No newline at end of file
+    return None
\ No newline at end of file