SDL提供了针对YUV格式数据的直接写屏操作.废话不多说,直接上代码吧/** * file showyuv.c * author: rare * date: 2009/12/06 * email: dux003#163.com */#include <stdlib.h>#include "SDL.h"int main(int argc , char* argv[]){ int i = 1; int x, y; int w = 176; int h =
本文改写整理自一篇博文,原文链接如下: Why you should use the key directive in Vue.js with v-for Application state and DOM state 要回答这个问题,我们先要了解一下以下两个概念:应用状态(Application state)和 DOM 状态(DOM state),先创建一个简单的 Vue 组件如下(Vue 3): <script setup> import { reactive } from "@
线程之间本身是数据共享的,当多个线程同时修改一份数据的时候,数据就可能不 准确,特别是线程量特别大的时候,为了保证数据准确性: (1) 通过线程锁Lock (2)通过local数据隔离 from threading import local, Thread loc = local() # 生成一个对象 def func(name, age): global loc loc.name = name loc.age = age print(loc.name, loc.age) Thread(targ