对如图所示的二叉树进行先序遍历的顶点序列是　_____①_______，后序遍历时得到的顶点序列是_____②_____。① ABDEC 　　 ②　EDBCA① EDBCA 　　 ② DEBAC① DEBAC ② ABDEC - 查题网

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国家开放大学 / 程序设计基础

对如图所示的二叉树进行先序遍历的顶点序列是　_____①_______，后序遍历时得到的顶点序列是_____②_____。

① ABDEC 　　 ②　EDBCA
① EDBCA 　　 ② DEBAC
① DEBAC ② ABDEC

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