查看專欄目錄: VUE ------ element UI

專欄目標(biāo)

在vue和element UI聯(lián)合技術(shù)棧的操控下，本專欄提供行之有效的源代碼示例和信息點(diǎn)介紹，做到靈活運(yùn)用。

（1）提供vue2的一些基本操作：安裝、引用，模板使用，computed，watch，生命周期(beforeCreate，created,beforeMount，mounted, beforeUpdate，updated, beforeDestroy，destroyed，activated，deactivated，errorCaptured，components，)、 $root , $parent , $children , $slots , $refs , props, $emit , eventbus ,provide / inject, Vue.observable, $listeners, $attrs, $nextTick , v-for, v-if, v-else,v-else-if，v-on，v-pre，v-cloak，v-once，v-model， v-html, v-text, keep-alive，slot-scope， filters, v-bind，.stop, .native, directives，mixin，render，國(guó)際化，Vue Router等

（2）提供element UI的經(jīng)典操作：安裝，引用，國(guó)際化，el-row，el-col，el-button，el-link，el-radio，el-checkbox ，el-input，el-select, el-cascader, el-input-number, el-switch,el-slider, el-time-picker, el-date-picker, el-upload, el-rate, el-color-picker, el-transfer, el-form, el-table, el-tree, el-pagination,el-badge,el-avatar,el-skeleton, el-empty, el-descriptions, el-result, el-statistic, el-alert, v-loading, $message, $alert, $prompt, $confirm , $notify, el-breadcrumb, el-page-header,el-tabs ,el-dropdown,el-steps,el-dialog, el-tooltip, el-popover, el-popconfirm, el-card, el-carousel, el-collapse, el-timeline, el-divider, el-calendar, el-image, el-backtop，v-infinite-scroll， el-drawer等

需求背景

在vue項(xiàng)目開發(fā)中，經(jīng)常用到某些提示。勾選后，要求今天不再?gòu)棿疤崾?。這個(gè)示例是一個(gè)演示，通過設(shè)置和獲取localStorage中某個(gè)值來判斷是否提示。

示例效果

示例源代碼（共90行）

/*
* @Author: 大劍師蘭特（xiaozhuanlan），還是大劍師蘭特（CSDN）
* @此源代碼版權(quán)歸大劍師蘭特所有，可供學(xué)習(xí)或商業(yè)項(xiàng)目中借鑒，未經(jīng)授權(quán)，不得重復(fù)地發(fā)表到博客、論壇，問答，git等公共空間或網(wǎng)站中。
* @Email: 2909222303@qq.com
* @weixin: gis-dajianshi
* @First published in CSDN
* @First published time: 2022-09-08
*/
<template><div class="container"><div class="top"><h3>vue項(xiàng)目，勾選后今天不再?gòu)棿疤崾?</h3><div class="author">大劍師蘭特, 還是大劍師蘭特，gis-dajianshi</div></div><h4><el-button type="primary" @click="showInfo()"> 點(diǎn)擊判斷提示 </el-button></h4><div class="tipBox" v-if="isbox"><h3>提示彈窗</h3><el-checkbox v-model="noTip" @change='noTipAgain()'>不再提示</el-checkbox><div class="close" @click="isbox=false"><el-button type="primary" size="mini"> 關(guān)閉 </el-button></div></div></div>
</template>
<script>import dayjs from "dayjs";export default {data() {return {isbox: false,noTip: false,}},methods: {showInfo() {let noTipTime = localStorage.getItem('noTipTime')let curtime = dayjs().unix() * 1000if (noTipTime) {if (noTipTime > curtime) {this.$message({type: "error",message: '今天已經(jīng)不再提示了！'})} else {this.isbox = true;this.noTip = false}} else {this.isbox = true;}},noTipAgain() {if (this.noTip) {let curdate = dayjs(new Date()).format('YYYY-MM-DD');let curdayTime = dayjs(curdate).unix() * 1000 + 24 * 60 * 60 * 1000localStorage.setItem('noTipTime', curdayTime)}},},}
</script>
<style scoped>.container {width: 1000px;height: 580px;margin: 50px auto;border: 1px solid green;position: relative;}.top {margin: 0 auto 30px;padding: 10px 0;background: orange;color: #fff;}.tipBox {position: absolute;left: calc(50% - 150px);top: calc(50%);width: 300px;height: 200px;border: 1px solid blue;background: #f4f4f4;}.close {margin-top: 60px;}
</style>

核心代碼

			showInfo() {let noTipTime = localStorage.getItem('noTipTime')let curtime = dayjs().unix() * 1000if (noTipTime) {if (noTipTime > curtime) {this.$message({type: "error",message: '今天已經(jīng)不再提示了！'})} else {this.isbox = true;this.noTip = false}} else {this.isbox = true;}},noTipAgain() {if (this.noTip) {let curdate = dayjs(new Date()).format('YYYY-MM-DD');let curdayTime = dayjs(curdate).unix() * 1000 + 24 * 60 * 60 * 1000localStorage.setItem('noTipTime', curdayTime)}},