save project

Untitled-1.py.py

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