Express application generatorExpress应用程序生成器

Use the application generator tool, express-generator, to quickly create an application skeleton.使用应用程序生成器工具express-generator快速创建应用程序框架。

You can run the application generator with the npx command (available in Node.js 8.2.0).您可以使用npx命令（在Node.js 8.2.0中提供）运行应用程序生成器。

$ npx express-generator

For earlier Node versions, install the application generator as a global npm package and then launch it:对于早期的节点版本，请将application generator作为全局npm包安装，然后启动它：

$ npm install -g express-generator
$ express

Display the command options with the -h option:使用-h选项显示命令选项：

$ express -h

  Usage: express [options] [dir]

  Options:

    -h, --help          output usage information
        --version       output the version number
    -e, --ejs           add ejs engine support
        --hbs           add handlebars engine support
        --pug           add pug engine support
    -H, --hogan         add hogan.js engine support
        --no-view       generate without view engine
    -v, --view <engine> add view <engine> support (ejs|hbs|hjs|jade|pug|twig|vash) (defaults to jade)
    -c, --css <engine>  add stylesheet <engine> support (less|stylus|compass|sass) (defaults to plain css)
        --git           add .gitignore
    -f, --force         force on non-empty directory

For example, the following creates an Express app named myapp.例如，下面创建了一个名为myapp的Express应用程序。The app will be created in a folder named myapp in the current working directory and the view engine will be set to Pug:应用程序将在当前工作目录中名为myapp的文件夹中创建，并且视图引擎将设置为Pug:

$ express --view=pug myapp

   create : myapp
   create : myapp/package.json
   create : myapp/app.js
   create : myapp/public
   create : myapp/public/javascripts
   create : myapp/public/images
   create : myapp/routes
   create : myapp/routes/index.js
   create : myapp/routes/users.js
   create : myapp/public/stylesheets
   create : myapp/public/stylesheets/style.css
   create : myapp/views
   create : myapp/views/index.pug
   create : myapp/views/layout.pug
   create : myapp/views/error.pug
   create : myapp/bin
   create : myapp/bin/www

Then install dependencies:然后安装依赖项：

$ cd myapp
$ npm install

On MacOS or Linux, run the app with this command:在MacOS或Linux上，使用以下命令运行应用程序：

$ DEBUG=myapp:* npm start

On Windows Command Prompt, use this command:在Windows命令提示符下，使用以下命令：

> set DEBUG=myapp:* & npm start

On Windows PowerShell, use this command:在Windows PowerShell上，使用以下命令：

PS> $env:DEBUG='myapp:*'; npm start

Then load http://localhost:3000/ in your browser to access the app.然后在浏览器中加载http://localhost:3000/以访问应用程序。

The generated app has the following directory structure:生成的应用程序具有以下目录结构：

.
├── app.js
├── bin
│   └── www
├── package.json
├── public
│   ├── images
│   ├── javascripts
│   └── stylesheets
│       └── style.css
├── routes
│   ├── index.js
│   └── users.js
└── views
    ├── error.pug
    ├── index.pug
    └── layout.pug

7 directories, 9 files

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