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需要的软件
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ok ,i pleasure give some questions ,first can you tell me learing english for step by step
Certainly! Here are some steps you can take to learn English:
1. Start with the basics: Learn the English alphabet, basic grammar rules, and common vocabulary words.
2. Practice listening and speaking: Listen to English speakers and practice speaking with native speakers or language partners. This will help you improve your pronunciation and fluency.
3. Read in English: Start with simple texts like children's books or news articles, and gradually work your way up to more complex texts.
4. Write in English: Practice writing in English by keeping a journal, writing emails, or participating in online forums.
5. Take a course or find a tutor: Consider taking an English course at a language school or finding a tutor who can provide personalized instruction.
6. Use language learning apps: There are many apps available that can help you learn English, such as Duolingo, Babbel, and Rosetta Stone.
7. Immerse yourself in the language: Watch movies or TV shows in English, listen to music in English, and try to use the language as
continue
我们判断,如果ChatGPT不犯大错,两年之内,整个科技行业甚至人类社会都会被颠覆一
遍。倒计时已经开始了。
在ChatGPT纪元中,提问题的能力和判断力也许是人类最重要的两个能力。我们这里提出五
个关键问题,并且试图抛开网络上的二手观点,做出基于原理的判断。
更详细的科普文可以参考这篇:了解AIGC中的ChatGPT和LLM
一 引言
作为十年GIS老兵,常常遇到同行或领导的灵魂拷问,“为什么我们不用google地图啊,我看它的3D很好啊”,“OpenLayers 6支持3D吗?”,“MapboxGL 2.5D与Cesium的3D优缺点是啥”,“地图不是球,这不是3D的啊?”,“51 World基于游戏引擎与云渲染技术在可视化领域已经对WebGL形成降维打击,WebGIS是不是没前途了?”等等等等。从业人员从技术角度对未来变革的担忧,领导虽然不懂技术也会从非专业角度表达一些关心,诸如此类问题层出不穷却又不是三言两语能讲清楚的,所以本文想稍微系统点介绍WebGIS发展历程、各自特点、未来方向,一家之言仅供读者参考。
是一个c++类
ObjectMonitor() {
_header = NULL;
_count = 0; //记录个数
_waiters = 0,
_recursions = 0; // 线程重入次数
_object = NULL;
_owner = NULL;
_WaitSet = NULL; // 调用wait方法后的线程会被加入到_WaitSet
_WaitSetLock = 0 ;
_Responsible = NULL ;
_succ = NULL ;
_cxq = NULL ; // 阻塞队列,线程被唤醒后根据决策判读是放入cxq还是EntryList
FreeNext = NULL ;
_EntryList = NULL ; // 没有抢到锁的线程会被放到这个队列
_SpinFreq = 0 ;
_SpinClock = 0 ;
OwnerIsThread = 0 ;
}
ObjectMonitor中有五个重要部分,分别为_ower,_WaitSet,_cxq,_EntryList和count。
HashMap相关类:Hashtable、LinkHashMap、TreeMap | HuanBlog
深入解析ConcurrentHashMap:感受并发编程智慧 | HuanBlog
本次先简要讨论ConcurrentHashMap 顺便讨论下HashMap,HashTable这些Map的数据的结构,线程安全,在get,put部分的业务逻辑
kafka开源流处理平台,由Scala和Java编写。该项目的目标是为处理实时数据提供一个统一、高吞吐、低延迟的平台。这是维基百科上的描述,这也是区别于rabbitmq等其他的消息队列的特点,kafka基于订阅-消费模式,自定义的协议,不同于MQTT,AMPQ,JMS等这些协议