angular-cn/aio/content/marketing/docs.md

<h1 class="no-toc">Introduction to the Angular Docs</h1>

Angular is an app-design framework and development platform for creating efficient and sophisticated single-page apps.

These Angular docs help you learn and use the Angular framework and development platform, from your first app to optimizing complex single-page apps for enterprises.
Tutorials and guides include downloadable examples to accelerate your projects.


<div class="card-container">
  <a href="start" class="docs-card" title="Angular Getting Started">
      <section>Learn</section>
      <p>Play with and extend a small ready-made Angular app, without any setup</p>
      <p class="card-footer">Getting Started</p>
  </a>
  <a href="guide/setup-local" class="docs-card"
    title="Angular Local Environment Setup">
      <section>Start Working</section>
      <p>Set up your local environment with the Angular CLI</p>
      <p class="card-footer">Local Setup</p>
  </a>
  <a href="guide/architecture" class="docs-card" title="Angular App Architecture">
      <section>Explore</section>
      <p>Learn about the fundamental design concepts and architecture of Angular apps</p>
      <p class="card-footer">Introduction to Angular concepts</p>
  </a>
</div>


## Assumptions


These docs assume that you are already familiar with [HTML](https://developer.mozilla.org/docs/Learn/HTML/Introduction_to_HTML "Learn HTML"), [CSS](https://developer.mozilla.org/docs/Learn/CSS/First_steps "Learn CSS"), [JavaScript](https://developer.mozilla.org/en-US/docs/Web/JavaScript/A_re-introduction_to_JavaScript "Learn JavaScript"),
and some of the tools from the [latest standards](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Language_Resources "Latest JavaScript standards"), such as [classes](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Classes "ES2015 Classes") and [modules](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/import "ES2015 Modules").
The code samples are written using [TypeScript](https://www.typescriptlang.org/ "TypeScript").
Most Angular code can be written with just the latest JavaScript, using [types](https://www.typescriptlang.org/docs/handbook/classes.html "TypeScript Types") for dependency injection, and using [decorators](https://www.typescriptlang.org/docs/handbook/decorators.html "Decorators") for metadata.


## Feedback

<h4>You can sit with us!</h4>

We want to hear from you. [Report problems or submit suggestions for future docs.](https://github.com/angular/angular/issues/new/choose "Angular GitHub repository new issue form")

Contribute to Angular docs by creating
[pull requests](https://github.com/angular/angular/pulls "Angular Github pull requests")
on the Angular Github repository.
See [Contributing to Angular](https://github.com/angular/angular/blob/master/CONTRIBUTING.md "Contributing guide")
for information about submission guidelines.

Our community values respectful, supportive communication.
Please consult and adhere to the [Code of Conduct](https://github.com/angular/code-of-conduct/blob/master/CODE_OF_CONDUCT.md "Contributor code of conduct").