save project

dd.py

+num_list = [1, 3, 5, 8, 11, 15, 17, 18, 20, 21]
+bingo_num=20
+low=0
+high=len(num_list)-1
+while low<=high:
+    guess_num=(low+high)//2
+    if guess_num==bingo_num:
+        print("找到了")
+        break
+    elif guess_num<bingo_num:
+        low=mid+1
+    else:
+        guess_num<bingo_num
+        high=mid-1
\ No newline at end of file

my_search.py

@@ -6,4 +6,17 @@ for i in range(1, 101):
 num = random.choice(alist)
 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):
\ No newline at end of file
+    high=len(num_list)-1
+    low=0
+    guess=(alistr+num)//2
+     if num==guess:
+       return None
+    elif guess<num:
+        low=mid+1
+    elif guess<num:
+        high=mid-1
+
+print()
+        
+