Vue脚手架编写试卷页面功能
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
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