Element-UI组件实现全局回到顶部功能

目录

一 项目创建步骤

二 删除不必要的文件

三 删除不必要的代码

四 安装 element-ui

五 启动项目

六 测试

七 正式编写的代码

八 测试效果

九 源码地址

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一 项目创建步骤

1 创建项目

vue create ele-components

2 选择必要组件

? Check the features needed for your project:
(*) Babel
( ) TypeScript
( ) Progressive Web App (PWA) Support
(*) Router
( ) Vuex
(*) CSS Pre-processors
>( ) Linter / Formatter
( ) Unit Testing
( ) E2E Testing

3 路由模式选择history模式

? Please pick a preset: Manually select features
? Check the features needed for your project: Babel, Router, CSS Pre-processors
? Use history mode for router? (Requires proper server setup for index fallback in production) (Y/n) y

4 预处理器选择 node-sass

? Pick a CSS pre-processor (PostCSS, Autoprefixer and CSS Modules are supported by default):
  Sass/SCSS (with dart-sass)
> Sass/SCSS (with node-sass)
  Less
  Stylus

5 选择默认配置文件

> In dedicated config files
  In package.json

6 不保存为预制项目

? Save this as a preset for future projects? (y/N) n

7 使用npm安装依赖

? Pick the package manager to use when installing dependencies:
  Use Yarn
> Use NPM

8 安装过程

Vue CLI v4.3.1
✨  Creating project in F:\vue\ele-components\ele-components.
⚙️  Installing CLI plugins. This might take a while...

二 删除不必要的文件

About.vue

HelloWord.vue

三 删除不必要的代码

1 index.js删除后的样子

import Vue from 'vue'
import VueRouter from 'vue-router'
import Home from '../views/Home.vue'

Vue.use(VueRouter)

  const routes = [
  {
    path: '/',
    name: 'Home',
    component: Home
  }
]

const router = new VueRouter({
  mode: 'history',
  base: process.env.BASE_URL,
  routes
})

export default router

2 Home.vue删除后的样子

3 APP.vue删除后的样子

四 安装 element-ui

cnpm i -S element-ui

五 启动项目

npm run serve

六 测试

1 浏览器输入  http://localhost:8080/

2 界面呈现如下

七 正式编写的代码

1 main.js

import Vue from 'vue'
import App from './App.vue'
import router from './router'
// 导入ElementUI
import ElementUI from 'element-ui'
// 导入ElementUI的样式
import 'element-ui/lib/theme-chalk/index.css'
// 导入全局组件
import './globalComponents'
// 使用导入ElementUI
Vue.use(ElementUI)
Vue.config.productionTip = false


new Vue({
  router,
  render: h => h(App)
}).$mount('#app')

2 Home.vue

3 BackTopOne.vue

4 BackTopTwo.vue

5 index.js

import Vue from 'vue'
import VueRouter from 'vue-router'
import Home from '../views/Home.vue'

Vue.use(VueRouter)

const routes = [
    {
        path: '/',
        name: 'Home',
        component: Home
    },
    {
        path: '/backTopOne',
        name: 'backTopOne',
        component: () => import('../views/BackTopOne')
    },
    {
        path: '/backTopTwo',
        name: 'backTopTwo',
        component: () => import('../views/BackTopTwo')
    }
]

const router = new VueRouter({
    mode: 'history',
    base: process.env.BASE_URL,
    routes
})

export default router

6 ele-components\src\globalComponents\index.js

/*注册全局组件*/
import Vue from "vue"
import BackTop from "../components/backTop/BackTop"

Vue.component('backTop',BackTop)

八 测试效果

九 源码地址

https://gitee.com/cakin24/ele-components