How to implement undo and redo operations in flex 4 to maintain historical records?
I am using flex UIComponent and DisplayObjects to create and edit charts, but
in flex, it is not possible to di
Tag: realization
Pure CSS realizes dynamic sunny rain
1 Introduction In this issue, I will share how to use CSS3 to realize dynamic sunny, rainy, rainy, and snowy single-tab. The key technical points are “single label” and “pure CSS”. First look at th
CRC32 C realization – does not work
I found this CRC32 implementation on the internet and changed it a bit, but I can’t get it to work. I initialize it and update it on every byte I get from the input , But the hash I get is not what
Recursive implementation of the Fiboacci number
2019-09-30
import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;
public class Demo01 {
public static void main(String[] args) {
/**
* 11~23, get the nth F
Interface power equalization
What is idempotence? For the same business operation, no matter how many times it is called, the result will be the same.
Let’s take the example of docking Alipay recharge to analyze how to
[Data Structure] Iterator realizes the order of the binary tree
Iterator
templatestruct __TreeIterator{ typedef BinTreeNode Node; typedef __TreeIterator Self; __TreeIterator() {} __TreeIterator(Node* node) :_node(node) {} Ref operator*() {assert( _node);
[Data Structure] Implementation and Stack of Size
Heap generally refers to a binary heap, the structure is as follows
The number inside the circle refers to the subscript, and the content outside the circle, as shown in the figure, cannot be
[Data Structure] Recursive and non-recursion realization of binary search trees
1. What is a binary search tree
1. Each node has a key code (key) as the basis for searching, and the key codes of all nodes are different from each other.
2. The key code (key) of all
[Data Structure] Stack Surface Test – Two queues implement a stack
The last article wrote about using two stacks to implement a queue. This article implements using two queues to implement a stack. In fact, the ideas of both almost the same.
Continue drawing
[Data Structure] Heap, Heap Realization Priority Queue, Stack Sort
1. What is a heap? Heap is a data structure. The bottom layer is an array object. It can be regarded as a complete binary tree structure.
The largest heap: each parent node is larger than th