vue.js的原生日历实现方法

之前的CSDN编译器有问题，所以现在重新整理出来给大家，本文主要和大家分享vue.js的原生日历实现方法，希望能帮助到大家。

先po上效果图：

html代码：

  <script type="text/x-template" id="calendar">
        <p id="">
            <!-- 年份 月份 -->
            <p class="month">
                <ul>
                    <!--点击会触发pickpre函数，重新刷新当前日期 @click(vue v-on:click缩写) -->
                    <li class="arrow" @click="pickPre(currentYear,currentMonth)">❮</li>
                    <li class="year-month" @click="pickYear(currentYear,currentMonth)">
                        <span class="choose-year">{{ currentYear }}</span>
                        <span class="choose-month">{{ currentMonth }}月</span>
                    </li>
                    <li class="arrow" @click="pickNext(currentYear,currentMonth)">❯</li>
                </ul>
            </p>
            <!-- 星期 -->
            <ul class="weekdays">
                <li>一</li>
                <li>二</li>
                <li>三</li>
                <li>四</li>
                <li>五</li>
                <li style="color:red">六</li>
                <li style="color:red">日</li>
            </ul>
            <!-- 日期 -->
            <ul class="days">
                <!-- 核心 v-for循环 每一次循环用<li>标签创建一天 -->
                <li v-for="dayobject in days">
                    <!--本月-->
                    <!--如果不是本月  改变类名加灰色-->

                    <span v-if="dayobject.day.getMonth()+1 != currentMonth" class="other-month">{{ dayobject.day.getDate() }}</span>

                    <!--如果是本月  还需要判断是不是这一天-->
                    <span v-else>
                        <!--今天  同年同月同日-->
                        <span v-if="dayobject.day.getFullYear() == new Date().getFullYear() && dayobject.day.getMonth() == new Date().getMonth() && dayobject.day.getDate() == new Date().getDate()"
                            class="active">{{ dayobject.day.getDate() }}</span>
                        <span v-else>{{ dayobject.day.getDate() }}</span>
                    </span>

                </li>
            </ul>
        </p>
    </script>
    <p id="app">
        <calendar></calendar>
    </p>

js代码：

  Vue.component("calendar", {
            template: "#calendar",
            data: function () {
                return {
                    currentDay: 1,
                    currentMonth: 1,
                    currentYear: 1970,
                    currentWeek: 1,
                    days: [],
                }
            },
            created() {                let that = this;
                that.initData(null);
            },
            methods: {
                initData: function (cur) {
                    let that = this;                    let leftcount = 0; //存放剩余数量
                    let date;                    if (cur) {
                        date = new Date(cur);
                    } else {                        let now = new Date();                        let d = new Date(that.formatDate(now.getFullYear(), now.getMonth(), 1));
                        d.setDate(35);
                        date = new Date(that.formatDate(d.getFullYear(), d.getMonth() + 1, 1));
                    }
                    that.currentDay = date.getDate();
                    that.currentYear = date.getFullYear();
                    that.currentMonth = date.getMonth() + 1;
                    that.currentWeek = date.getDay(); // 1...6,0
                    if (that.currentWeek == 0) {
                        that.currentWeek = 7;
                    }                    let str = that.formatDate(that.currentYear, that.currentMonth, that.currentDay);
                    that.days.length = 0;                    // 今天是周日，放在第一行第7个位置，前面6个
                    //初始化本周
                    for (let i = that.currentWeek - 1; i >= 0; i--) {                        let d = new Date(str);
                        d.setDate(d.getDate() - i);                        let dayobject = {}; //用一个对象包装Date对象  以便为以后预定功能添加属性
                        dayobject.day = d;
                        that.days.push(dayobject); //将日期放入data 中的days数组 供页面渲染使用
                    }                    //其他周
                    for (let i = 1; i <= 35 - that.currentWeek; i++) {                        let d = new Date(str);
                        d.setDate(d.getDate() + i);                        let dayobject = {};
                        dayobject.day = d;
                        that.days.push(dayobject);
                    }

                },
                pickPre: function (year, month) {
                    let that = this;                    // setDate(0); 上月最后一天
                    // setDate(-1); 上月倒数第二天
                    // setDate(dx) 参数dx为 上月最后一天的前后dx天
                    let d = new Date(that.formatDate(year, month, 1));
                    d.setDate(0);
                    that.initData(that.formatDate(d.getFullYear(), d.getMonth() + 1, 1));
                },
                pickNext: function (year, month) {
                    let that = this;                    let d = new Date(that.formatDate(year, month, 1));
                    d.setDate(35);
                    that.initData(that.formatDate(d.getFullYear(), d.getMonth() + 1, 1));
                },
                pickYear: function (year, month) {
                    alert(year + "," + month);
                },                // 返回 类似 2016-01-02 格式的字符串
                formatDate: function (year, month, day) {
                    let y = year;                    let m = month;                    if (m < 10) m = "0" + m;                    let d = day;                    if (d < 10) d = "0" + d;                    return y + "-" + m + "-" + d
                },
            }
        })        let vm = new Vue({
            el: &#39;#app&#39;,
        })

css代码：

* {    margin: 0;    padding: 0;}/*日历*/#calendar 
{    width: 98%;    
border: 2px solid #A4A7B0;    
height: 335px;   
margin-left: 0.5%;}.month 
{    width: 92%;    height: 48px;    
border: 2px solid #FFFFFF;    
margin-left: 3%;    margin-top: 20px;}.month ul 
{    margin: 0;    padding: 0;    
display: flex;    
margin-top: 11px;    
justify-content: space-between;}.year-month 
{    flex-direction: column;    
align-items: center;    
justify-content: space-around;}.choose-year 
{    padding: 0 20px;   
font-size: 16px;    
font-weight: 200;}.choose-month 
{    text-align: center;    
font-size: 16px;    
font-weight: 200;}.arrow 
{    width: 3%;   
 height: 25px;}.arrow1 
 {    background: url(left.png) no-repeat 0 0 /100% 100%;    
 margin-left: 44px;}.arrow2 
 {    background: url(right.png) no-repeat 0 0 /100% 100%;   
  margin-right: 44px;}.month ul li {    color: #999;    
  font-size: 20px;    
  text-transform: uppercase;    
  letter-spacing: 3px;    
  list-style: none;}.weekdays 
  {    margin: 0;    
  color: #FFFFFF;    
  background: #A4A7B0;    
  width: 96.6%;    
  margin-top: 26px;    
  height: 34px;    
  line-height: 34px;    
  margin-left: 2.2%;}.weekdays li 
  {    display: inline-block;    
  text-align: center;    
  color: #11616f;    
  font-size: 14px;    
  font-weight: 100;    
  width: 12.7%;}.days 
  {    padding: 0;    
  margin: 0;    
  display: flex;    
  flex-wrap: wrap;    
  justify-content: space-around;}.days 
  li {    list-style-type: none;    
  display: inline-block;    
  width: 14.2%;    
  text-align: center;    
  padding-bottom: 3px;    
  padding-top: 7px;    
  font-size: 12.78px;    
  color: rgb(14, 220, 235);    
  font-weight: 200;}.days li span span 
  {    height: 29.5px;    
  width: 27px;    
  line-height: 29.5px;    
  display: inline-block;}.days li .class-30 
  {    background: url(bg_30.png) no-repeat 0 0 /100% 100%;}.days li .class-60 
  {    background: url(bg_60.png) no-repeat 0 0 /100% 100%;}.days li .class-3060 
  {    background: url(bg_3060.png) no-repeat 0 0 /100% 100%;}.days li .other-month 
  {    padding: 5px;    color: #84a8ae;}

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