脚手架(vue-cli)
(一)什么是脚手架
概念:是一种用于快速开发Vue项目的系统架构
优点:能够帮助咱们快速的开发项目
缺点:由于脚手架适用于各种项目的开发,而不是单独的针对某一项目单独研发的,会出现代码冗余
脚手架的使用:
1、安装脚手架 vue-cli
全局安装打开cmd运行:cnpm install -g @vue/cli
2、查看当前版本号:
vue -V
3、创建项目:
根目录下打开cmd运行:vue create objectname
项目名称(名称不能有大写)
正文开始
Vue脚手架实现试卷页面功能
将moduleA中的store模块化
在state中放入变量subjectList
,通过mutations更新subjectList
在Home.vue中通过mapMutations
激活mutations中的getSubjectList
,从而更新subjectList
import '@/mock' export default { namespaced: true, state: { subjectList: [] }, mutations: { getSubjectList(state, payload) { state.subjectList = payload } } }
store/index.js import Vuex from 'vuex' import Vue from 'vue' Vue.use(Vuex) import user from './modules/user' import moduleA from './modules/moduleA' let store =new Vuex.Store({ modules:{ moduleA } }) export default store
Home.vue
fmtSubjectType,fmtOrder2ABC为过滤器,checkSubjectType
为方法,统一放在Vue.mixin中,保存在mixin中的index.js文件中
通过checkSubjectType方法的结果真假控制此div是否存在
<template> <div class="main"> <ul> <li class="item" v-for="(item, i) in subjectList" :key="i"> <h4>{{i+1}}.[{{item.type|fmtSubjectType}}] {{item.title}}</h4> <div style="color:#888;font-size:14px"> {{item.author}}{{item.createDate}} </div> <fieldset style="padding:0 10px;" v-if="checkSubjectType(item.type)"> <legend >选项</legend> <div v-for="(choice, j) in item.choice" :key="j"> {{j|fmtOrder2ABC}} {{choice.answer}} </div> </fieldset> <div v-if="checkSubjectType(item.type)">答案:{{item.answer}}</div> <div >解析:{{item.desc}}</div> </li> </ul> </div> </template>
<script> import '@/mock' import {createNamespacedHelpers} from 'vuex' let {mapState,mapMutations,mapActions}= createNamespacedHelpers('moduleA') export default { async created() { let {subjectList} = await this.$get('/subjectList') this.getSubjectList(subjectList) }, computed: { ...mapState(['subjectList']) }, methods: { ...mapMutations(['getSubjectList']), } }; </script>
<style scoped lang='scss'> .main{ border: 1px solid red; .item{ padding: 20px 10px; border-bottom: 1px solid #ccc; } } </style>
mixin/index.js
通过切 换BASE_URL 来切换接口,axios中的url是通过 BASE_URL 拼接的
import axios from 'axios' import Vue from 'vue' import { BASE_URL } from '@/config' import {SUBJECT_TYPE} from '@/config/enum' Vue.mixin({ methods: { async $get(url,params){ let {data} = await axios.get(BASE_URL+url,{params}) return data }, checkSubjectType(type){ return type===SUBJECT_TYPE.DANXUAN||type===SUBJECT_TYPE.DUOXUAN } }, filters:{ fmtSubjectType(val){ return ['单选题', '多选题', '判断题', '简答题'][val] }, fmtOrder2ABC(val) { return 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'[val] } }, data() { return { SUBJECT_TYPE } }, })
config/index.js
通过MODE的改变,更换接口
import {MODE_TYPE} from './enum' const BASE_URL_BEF='' const BASE_URL_PRO='XXX' const BASE_URL_DEV='PPPP' const MODE=MODE_TYPE.BEF export const BASE_URL = [BASE_URL_BEF,BASE_URL_PRO,BASE_URL_DEV][MODE]
config/enum.js
鉴于魔法数字的缘故,通过如下,使代码更清晰
//枚举 export const MODE_TYPE={ BEF:0, PRO:1, DEV:2 } export const SUBJECT_TYPE={ DANXUAN:0, DUOXUAN:1, PANDUAN:2, JIANDA:3 }
mock/index.js
通过mock伪造数据
import Mock from 'mockjs' Mock.mock('/subjectList',{ "subjectList|10":[ { "id|+1": 1, "title": "@cword(5,10)", "type": "@integer(0,3)", author:"@cname", createDate:'@datetime', "choice": [ { "id": 11, "choice": "A", "answer": 0 }, { "id": 12, "choice": "B", "answer": 1 }, { "id": 13, "choice": "C", "answer": 2 }, { "id": 14, "choice": "D", "answer": 3 } ], "answer": "C", desc:'@cword(8,25)' } ] })
总结
到此这篇关于Vue脚手架实现试卷页面的文章就介绍到这了,更多相关Vue脚手架实现试卷页面内容请搜索易盾网络以前的文章或继续浏览下面的相关文章希望大家以后多多支持易盾网络!