save project

diy.py

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