本篇文章主要是讲解如何简单示用74HC595,更具体的讲解请移步 https://www.cnblogs.com/lulipro/p/5067835.html#undefined 这篇文章讲解的更加详细. /**************************************************************************************/ 在开始前要预习的一些东西 595里面有2个8位寄存器:移位寄存器SRCLK.存储寄存器RCLK; SER:串行输入口…

请看题目描述: You are given two linked lists representing two non-negative numbers. The digits are stored in reverse order and each of their nodes contain a single digit. Add the two numbers and return it as a linked list. Input: (2 -> 4 -> 3) + (5 ->…

本来打算写redis的,时间上有点没顾过来,只能是又拿出点自己的存货了. Problem Given an array nums, write a function to move all 's to the end of it while maintaining the relative order of the non-zero elements. Example: Given nums = [, , , , ], after calling your function, nums shou…

Problem Given an integer, write a function to determine if it is a power of three. Follow up: Could you do it without using any loop / recursion? Code: class Solution { public: bool isPowerOfThree(int n) { if (n <= 0) return 0; int max_pow3 = log10(I…

目录 引入题目:两数相加 HashMap相关知识: Map集合 Map集合的特点 Map常用子类 HashMap集合 LinkedHashMap集合 Map集合的常用方法 Map集合的第一种遍历方式:通过键找值的方式 Map集合遍历的第二种方式:使用Entry对象遍历 HashMap存储自定义类型键值 Hashtable<K,V>集合 静态方法of(E... elements) 引入题目:两数相加 * 给定一个整数数组 nums 和一个目标值 target * 请你在该数组中找出和为目标值的那…

Problem Given an integer (signed bits), write a function to check whether it . Example: Given num = , , return false. Follow up: Could you solve it without loops/recursion? Code class Solution { public: bool isPowerOfFour(int num) { ) && ((num &am…

心情还是有问题,保持每日更新,只能如此了. Problem Given a binary tree, return the level order traversal of its nodes' values. (ie, from left to right, level by level). Example: Given binary tree {,,,#,#,,}, ···· / \ / \ Result return its level order traversal as: [ [],…

在中有一个Today按钮就是实现显示当前日期,所以我们在src/jquery.datebox.js文件中可以找到currentText:'Today'.所以我们可以使用'currentText'和'Today'来默认显示当前日期.1.使用属性data-options="value:'currentText'"或data-options="value:'Today'"2.使用javascript设置$('#datebox1').datebox('setValue','…

Problem: You are playing the following Nim Game with your friend: There is a heap of stones on the table, each time one of you take turns to remove 1 to 3 stones. The one who removes the last stone will be the winner. You will take the first turn to…

1. 假设仅须要播放波形文件wav格式的声音,非常easy.仅仅需一句话: PlaySound(TEXT("Data\\1.wav"), NULL, SND_FILENAME | SND_ASYNC | SND_LOOP); 在这里仅仅提供方法,具体问题自己去探索. 完整C语言代码: #include <windows.h> #pragma comment(lib, "Winmm.lib") int main(int argc, char *argv[]…