【简答题】在Java中,语句String str =“abcdefg”;str = str.substring(1,3);执行后str中的值为______。If there were statements are String str =“abcdefg”;str = str.substring(1,3);the result of str after running will be ______.
【简答题】在一棵非空二叉树中,若度为0的结点的个数n,度为2的结点个数为m,则有n=________ (系统根据字符串匹配来判定答案,所以您的答案中请不要包含空格)For a binary tree with at least one node, if there are n nodes with degree 0 and m nodes with degree 2, then n = ________(T...
【简答题】For a binary tree with at least one node, if there are n nodes with degree 0 and m nodes with degree 2, then n = ________ ( This problem is judged by string matching, Please make sure your answer don'...