save project

my_search.py

@@ -3,7 +3,25 @@ import random
 alist = []
 for i in range(1, 101):
     alist.append(i)
-num = random.choice(alist)
+q = 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 a(alist,q):
+    low=0
+    high=len(alist)-1
+    while low  <=high:
+        mid = (low+high)//2
+        e=alist[mid]
+        if e==q:
+            print('OK它是',mid)
+            break
+        elif e<q:
+            low=mid+1
+        elif e<q:
+            low=mid-1
+    return None
+result=a(alist,q)
+print("是",q)
+print("是",result)
+    
+    
\ No newline at end of file