在窗体中添加一个TreeView控件,设置CheckBox属性为True,绑定数据 Archive jkj = new Archive();//自定义类 public void Bind() { DataTable rol = jkj.GetDataTable("select rolesid,description from roles","roles"); this.l
新建一个继承自TreeView的控件类,代码如下: using System; using System.Windows.Forms; using System.Drawing; using System.Runtime.InteropServices; namespace SenseTreeView { public class SenseTreeView : TreeView { #region 控件属性 //显示字体 private Font _NodeFont; public Font
效果图: 新建一个继承自TreeView的控件类,代码如下: using System; using System.Windows.Forms; using System.Drawing; using System.Runtime.InteropServices; namespace SenseTreeView { public class SenseTreeView : TreeView { #region 控件属性 //显示字体 private Font _NodeFont; public
Given a binary tree, flatten it to a linked list in-place. For example,Given 1 / \ 2 5 / \ \ 3 4 6 The flattened tree should look like: 1 \ 2 \ 3 \ 4 \ 5 \ 6 click to show hints. Hints: If you notice carefully in the flattened tree, each node's right
Given a binary tree, flatten it to a linked list in-place. For example, given the following tree: 1 / \ 2 5 / \ \ 3 4 6 The flattened tree should look like: 1 \ 2 \ 3 \ 4 \ 5 \ 6 给定一个二叉树,原地将它展开为链表. 例如,给定二叉树 1 / \ 2 5 / \ \ 3 4 6 将其展开为: 1 \ 2 \ 3 \ 4
1.递归yield使用: 嵌套列表展开 def flatten(nested): if type(nested)==list: for sublist in nested: for i in flatten(sublist): yield i else: yield nested print(list(flatten([[[1],2],3,4,[5,[6,7]],8]))) #结果为[1,2,3,4,5,6,7,8] 树的后序遍历: def postorderTraversal(self, ro