澳客网竞彩 (关于澳客网竞彩 玩法)

Node.js 是构建于Chrome的JavaScript引擎的，Google的浏览器Chrome，有一个很是快速的JavaScript引擎，叫做V8。这个JS引擎可以被自力出来。Node.js就是建树在V8之上的。这也是为什么Node.js会运行的如此之快。对于开辟者来说，有几个益处：你不须要从头进修一门新的说话，它就是JS。我经常查看Chrome和Mozilla的JS文档，他们完全通用。

1、安装编译环境，>sudo apt-get install g++ c++ curl libssl-dev apache2-utils git-core curl 2、下载Node安装包，>wget http://nodejs.org/dist/node-v0.3.0.tar.gz 3、编译安装，步骤如下： >./configure        //注：如果不需SSL，可加入选项-without-ssl >make >make install 4、安装成功，默认路径为：/usr/local/bin/node！

1、安装成功后先写“Hello World!”简单测试一下，代码如下：Java代码  view plaincopy to clipboardprint?  //filename: app.js    var http = require('http');    http.createServer(function (req, res) {      res.writeHead(200, {'Content-Type': 'text/plain'});      res.end('Hello World\n');    }).listen(8000, 127.0.0.1);    console.log('Server running at http://127.0.0.1:8000/'); 2、运行 app.js，>node app.js，在浏览器输入http://127.0.0.1:8000/，即可看到效果 3、Node提供了一些常用的API，可参考：http://nodejs.org/api.html

除Node本身提供的API外，现在有不少第三方模块可极大的提高开发效率，如：WEB框架-express，HTTP中间件-connect，模板-ejs等，为了管理这些模块我们需要安装NPM，安装过程如下： 1、首先准备目录权限，不要以ROOT帐号安装，>sudo chown -R $USER /usr/local   fedora下，先用root更改权限 chown -R $USER /usr/local 之后退出root 2、安装NPM，>curl http://npmjs.org/install.sh | sh 3、完成后安装第三方模块也很简单，>npm install modules_name，安装Express，>npm install express 注：如果安装模块的过程中报域名错误的话，请清空缓存 >npm cache clean 或重启计算机即可

Build

FreeBSD 10 is no longer supported. #22617

child_process

The default value of the windowsHide option has been changed to true. #21316

console

console.countReset() will emit a warning if the timer being does not exist. #219

console.time() will no longer a timer if it already exists. #20442

Dependencies

V8 has been updated to 7.0. #22754

fs

The fs.read() method now requires a callback. #22146

The previously deprecated fs.SyncWriteStream utility has been removed.#20735

http

The http, https, and tls modules now use the WHATWG URL parser by default. #20270

General

Use of process.binding() has been deprecated. Userland code using process.binding() should re-evaluate that use and begin migrating. If there are no supported API alternatives, please open an issue in the Node.js GitHub repository so that a suitable alternative may be discussed.

An experimental implementation of queueMicrotask() has been added. #22951

Internal

Windows performance-counter support has been removed. #22485

The --expose-http2 command-line option has been removed. #20887

Timers

Interval timers will be rescheduled even if previous interval threw an error. #20002

nextTick queue will be run after each immediate and timer. #22842

util

The WHATWG TextEncoder and TextDecoder are now globals. #22281

util.inspect() output size is limited to 128 MB by default. #22756

A runtime warning will be emitted when NODE_DEBUG is set for either http or http2. #21914