binary_tree_level_order(二叉树层排序): 输入:数组{1,2,3,4,5,6,7,8,9,10},建立二叉树,再进行层排序. 输出:输出排序结果.-binary_tree_level_order (tree layer order): Input: array (1,2,3,4,5,6,7,8,9,10), the establishment of binary tree and then sort layer. Output: Output to sort th