使用Vue实现简单的日历，供大家参考，具体内容如下
原理分析：1.获取当前时间
2.显示当前时间
3.点击增加和减少月份
4.大月和小月的天数
初始样式（显示现在的日期时间）
增加一个月
在程序开始之前一定注意：
引入Vue.js架包
代码演示Body内容
<script type="text/x-template" id="calendar">
<!-- 年份-->
<div id="year">
<!--月份 -->
<div class="month">
<ul>
<li class="arrow" @click="pickPre(currentYear,currentMonth)">❮</li>
<li class="year-month" @click="pickYear(currentYear,currentMonth)">
<span class="choosen-year" style="color:blue">{{ currentYear }}</span>
<span class="choosen-month" style="color:blue">{{ currentMonth }}月</span>
</li>
<li class="arrow" @click="pickNext(currentYear,currentMonth)">❯</li>
</ul>
</div>
<!-- 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">
<!-- 循环-->
<li v-for="dayobject in days">
<!--本月-->
<span v-if="dayobject.day.getMonth()+1 != currentMonth" class="other-month">{{ dayobject.day.getDate() }}</span>
<!--判断天数是否正确-->
<span v-else>
<!--今天-->
<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>
</div>
</script>
<div id="app">
<calendar></calendar>
</div>
CSS样式
* {
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;
}
.choosen-year {
padding: 0 20px;
font-size: 16px;
font-weight: 200;
}
.choosen-month {
text-align: center;
font-size: 16px;
font-weight: 200;
}
.arrow {
width: 3%;
height: 25px;
}
.arrow1 {
background: url(left.webp) no-repeat 0 0 /100% 100%;
margin-left: 44px;
}
.arrow2 {
background: url(right.webp) 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.webp) no-repeat 0 0 /100% 100%;
}
.days li .class-60 {
background: url(bg_60.webp) no-repeat 0 0 /100% 100%;
}
.days li .class-3060 {
background: url(bg_3060.webp) no-repeat 0 0 /100% 100%;
}
.days li .other-month {
padding: 5px;
color: #84a8ae;
}
Vue.js内容
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;
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;
//初始化
for (let i = that.currentWeek - 1; i >= 0; i--) {
let d = new Date(str);
d.setDate(d.getDate() - i);
let dayobject = {};
dayobject.day = d;
that.days.push(dayobject);
}
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;
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: '#app',
})
到此程序结束。
