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O'Reilly Platform
book
React学习手册
by
Alex Banks
,
Eve Porcello
December 2017
Intermediate to advanced
329 pages
6h 9m
Chinese
China Electric Power Press Ltd.
Content preview from
React学习手册
React Router
|
271
嵌套路由
Route
组件可以用于匹配特定
URL
地址后才显示相关内容。这个特性允许用户将
Web
应用组织成一定的层级结构,从而有利于内容复用。
在本节中,我们还将介绍如何将内容组织成包含子菜单的子段落。
使用页面模版
有时,用户在应用程序中导航时,我们希望某些用户界面能够保持不变。以前的解决
方案包括页面模版和母版页来帮助开发人员复用
UI
元素。
React
组件天生就可以使用
子属性合成模版。
让我们看看这个简单的入门网站。一旦打开页面,每个段落都应该显示相同的主菜
单。屏幕右侧的内容应该随着用户浏览不同页面段落而变化,但是屏幕左侧的内容应
该保持不变(见图
11-4
)。
让我们创建一个可复用的
PageTemplate
组件,以便可以将之作为这些内部页面的模
版。该组件将会一直显示主菜单,但是将会根据用户浏览网站不同页面段落而渲染嵌
套的内容。
首先,我们需要构造
MainMenu
组件:
import HomeIcon from 'react-icons/lib/fa/home'
import { NavLink } from 'react-router-dom'
import './stylesheets/menus.scss'
const selectedStyle = {
backgroundColor: "white",
color: "slategray"
}
export const MainMenu = () =>
<nav className="main-menu"> ...
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Publisher Resources
ISBN: 9787519814236