教程：英雄指南
Tour of Heroes app and tutorial
如果你刚刚接触 Angular，请参见新的快速上手。 这个快速上手教程涵盖了与《英雄指南》相同的主题：组件、模板语法、路由、服务以及通过 HTTP 访问数据等，但是格式更简单，且遵循了绝大部分最佳实践。
If you're new to Angular, you might want to try the Getting Started quick-start app first. The Getting Started tutorial covers the same major topics—components, template syntax, routing, services, and accessing data via HTTP—in a condensed format, following the most current best practices. It uses a partially-completed StackBlitz project, so that you can make modifications and see the results in real time.
在这份教程中，你将从零开始构建出自己的应用，在此开发过程中获得的经验比对那些基本概念的介绍更加全面。
In this tutorial, you build your own app from the ground up, providing experience with the development process as well as a more thorough introduction to basic concepts.
这份《英雄指南》教程是本文档中很多范例的基础。阅读此简介页面可以为那些例子提供充足的上下文。阅读此简介页可以为使用这些示例提供足够的上下文。你不用实做这个教程就足以理解其它范例。
The Tour of Heroes app that you create with this tutorial serves as the conceptual basis for many examples throughout Angular documentation. Reading this introduction page provides sufficient context for working with those examples. You do not need to do this tutorial to understand those other examples.
这份《英雄指南》教程提供了一个对 Angular 基础知识的简介。 它会告诉你如何搭建本地开发环境，并使用 Angular CLI 工具开发一个应用。
This Tour of Heroes tutorial provides an introduction to the fundamentals of Angular. It shows you how to set up your local development environment and develop an app using the Angular CLI tool.
在这个英雄指南教程中，你将构建一个应用，来帮助招聘机构管理一群英雄。
In this Tour of Heroes tutorial, you will build an app that helps a staffing agency manage its stable of heroes.
这个入门级 app 包含很多数据驱动的应用所需的特性。 它需要获取并显示英雄的列表、编辑所选英雄的详情，并且在英雄数据的不同视图之间导航。
This app has many of the features you'd expect to find in a data-driven application. It acquires and displays a list of heroes, edits a selected hero's detail, and navigates among different views of heroic data.
在本教程的最后，你将完成下列工作：
By the end of this tutorial you will be able to do the following:
使用Angular 的内置指令来显示 / 隐藏元素，并显示英雄数据的列表。
Use built-in Angular directives to show and hide elements and display lists of hero data.
创建 Angular 组件以显示英雄的详情，并显示一个英雄数组。
Create Angular components to display hero details and show an array of heroes.
为只读数据使用单向数据绑定。
Use one-way data binding for read-only data.
添加可编辑字段，使用双向数据绑定来更新模型。
Add editable fields to update a model with two-way data binding.
把组件中的方法绑定到用户事件上，比如按键和点击。
Bind component methods to user events, like keystrokes and clicks.
让用户可以在主列表中选择一个英雄，然后在详情视图中编辑他。
Enable users to select a hero from a master list and edit that hero in the details view.
使用管道来格式化数据。
Format data with pipes.
创建共享的服务来管理这些英雄。
Create a shared service to assemble the heroes.
使用路由在不同的视图及其组件之间导航。
Use routing to navigate among different views and their components.
你将学到足够的 Angular 知识，并确信 Angular 确实能提供你所需的支持。
You'll learn enough Angular to get started and gain confidence that Angular can do whatever you need it to do.
完成本教程的所有步骤之后，最终的应用会是这样的：
After completing all tutorial steps, the final app will look like this:
你要构建出什么
What you'll build
下面是本教程关于界面的构想：开始是“Dashboard（仪表盘）”视图，来展示最勇敢的英雄。
Here's a visual idea of where this tutorial leads, beginning with the "Dashboard" view and the most heroic heroes:
仪表盘顶部中有两个链接：“Dashboard（仪表盘）”和“Heroes（英雄列表）”。 你将点击它们在“仪表盘”和“英雄列表”视图之间导航。
You can click the two links above the dashboard ("Dashboard" and "Heroes") to navigate between this Dashboard view and a Heroes view.
当你点击仪表盘上名叫“Magneta”的英雄时，路由会打开英雄详情页，在这里，你可以修改英雄的名字。
If you click the dashboard hero "Magneta," the router opens a "Hero Details" view where you can change the hero's name.
点击“Back（后退）”按钮将返回到“Dashboard（仪表盘）”。 顶部的链接可以把你带到任何一个主视图。 如果你点击“Heroes（英雄列表）”链接，应用将把你带到“英雄”列表主视图。
Clicking the "Back" button returns you to the Dashboard. Links at the top take you to either of the main views. If you click "Heroes," the app displays the "Heroes" master list view.
当你点击另一位英雄时，一个只读的“微型详情视图”会显示在列表下方，以体现你的选择。
When you click a different hero name, the read-only mini detail beneath the list reflects the new choice.
你可以点击“View Details（查看详情）”按钮进入所选英雄的编辑视图。
You can click the "View Details" button to drill into the editable details of the selected hero.
下面这张图汇总了所有可能的导航路径。
The following diagram captures all of the navigation options.
下图演示了本应用中的动图。
Here's the app in action:
