save project

binary_search.py

 # 使用二分查找法，找出9和20在列表里面的索引
 num_list = [1, 3, 5, 8, 11, 15, 17, 18, 20, 21]
 num=20
+low=0
 mid =(low+high)//2
-print("找到了")
+if mid==num:
+    print(index(mid))
+elif mid<num:
+    low=mid+1
+else:
+    high=mid-1
\ No newline at end of file

ddd.py

+import turtle