save project

diy.py

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