Vue腳手架編寫試卷頁面功能
腳手架(vue-cli)
(一)什麼是腳手架
概念:是一種用於快速開發Vue專案的系統架構
優點:能夠幫助咱們快速的開發專案
缺點:由於腳手架適用於各種專案的開發,而不是單獨的針對某一專案單獨研發的,會出現程式碼冗餘
腳手架的使用:
1、安裝腳手架 vue-cli
全域性安裝開啟cmd執行:cnpm install -g @vue/cli
2、檢視當前版本號:
vue -V
3、建立專案:
根目錄下開啟cmd執行:vue create objectname
專案名稱(名稱不能有大寫)
正文開始
Vue腳手架實現試卷頁面功能
將moduleA中的store模組化
在state中放入變數subjectList
,通過mutations更新subjectList
在Home.vue中通過mapMutations
啟用mutations中的getSubjectList
,從而更新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為過濾器,checkSubjectType
為方法,統一放在Vue.mixin中,儲存在mixin中的index.js檔案中
通過checkSubjectType方法的結果真假控制此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 >選項</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
通過切換BASE_URL 來切換介面,axios中的url是通過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 ['單選題','多選題','判斷題','簡答題'][val] },fmtOrder2ABC(val) { return 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'[val] } },data() { return { SUBJECT_TYPE } },})
config/index.js
通過MODE的改變,更換介面
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
鑑於魔法數字的緣故,通過如下,使程式碼更清晰
//列舉 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
通過mock偽造資料
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)' } ] })
總結
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