主要理解js部分的实现逻辑，HTML和css部分都可按自己项目操作。

html部分

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <link rel="stylesheet" href="css/class.css">

</head>
<body>
<div class="all">
    <div class="rili">
        <div class="riliTop">
            <span  id="previous" class="fl">&lt;</span>
            <span class="showTime" id="showTime">0000-00</span>
            <span id="next" class="fr">&gt;</span>
        </div>
        <ul class="riliHeader">
            <li>日</li>
            <li>一</li>
            <li>二</li>
            <li>三</li>
            <li>四</li>
            <li>五</li>
            <li>六</li>
        </ul>
        <ul class="riliContent" id="riliContent">

        </ul>
    </div>
</div>
<script src="js/class.js"></script>
</body>
</html>

CSS部分

*{
    margin: 0;
    padding: 0;
}
.all {
    margin-right: auto;
    margin-left: auto;
}

.clock{
    width:320px;
    text-align: center;
    margin-left:auto;
    margin-right:auto;
    transition: all 1s;
}

.rili{
    margin-left: auto;
    margin-right: auto;
    width: 350px;
    border:1px #ddd solid;
}
ul,li,ol{
    list-style: none;
}
.riliHeader{
    height: 50px;
    border-bottom:1px #ddd solid;
    background: #eee;
}
.riliHeader li, .riliContent li{
    float: left;
    width: 48px;
    height: 48px;
    line-height: 48px;
    font-size: 16px;
    text-align: center;
    border:1px #ddd solid;
}
.riliContent{
    height: 300px;
}
.riliContent li.on{
    color: #f00;
}
.fl{
    float: left;}
.fr{
    float: right;}
#previous,#next{cursor: pointer; margin:15px;width:15px; height:15px;border-radius: 15px;background: white;display: block;text-align:center;line-height: 15px;}
.riliTop .showTime{
    height: 50px;
    line-height: 50px;
    margin-left: 50%;
    display: inline-block;
    position: relative;
    left: -65px;
}
.riliTop{
    background: #55a532;
}

JS部分

{
    let riliContent=document.getElementById('riliContent');
    let showTime=document.getElementById('showTime');
    let previous=document.getElementById('previous');
    let next=document.getElementById('next');

    let newDate = new Date();

    let yearNum = newDate.getFullYear();
    let monthNum = newDate.getMonth();
    let dateNum = newDate.getDate();

    let everyday = function(days){

        let year = days.getFullYear();
        let month = days.getMonth()+1;

        let lastDay = new Date(year,month,0);
        let lastDay_date = lastDay.getDate();//这个月的最后一天
        let firstDay = new Date(year,month-1,1);
        let firstDay_day = firstDay.getDay();//这个月第一天

        //上个月的最后一天
        let pDay =new Date(year,month-1,0);
        let last_p_day =pDay.getDate();

        let n=0;//前几个灰色数生成
        for (let j =0;j<firstDay_day;j++)
        {   n++;
            let LI = document.createElement("li");
            last_p_days = last_p_day - firstDay_day;
            LI.innerHTML = last_p_days+n;
            LI.style.color = "#ddd";
            riliContent.appendChild(LI);
        }
        //本月数生成
        for (let i = 1; i <= lastDay_date; i++) {
            let LI = document.createElement("li");
            LI.innerHTML = i;
            (year === newDate.getFullYear() && month === newDate.getMonth()+1 && newDate.getDate() === i)&& (LI.style.color ="red");
            riliContent.appendChild(LI);
        }
        for (let m=1; m<=42-lastDay_date-firstDay_day;m++)
        {
            let LI = document.createElement("li");
            LI.innerHTML = m;
            LI.style.color = "#ddd";
            riliContent.appendChild(LI);
        }

        showTime.innerHTML = year +"-" + month;
    };


    previous.addEventListener("click",function () {
        riliContent.innerHTML ="";
        monthNum--;
        everyday(new Date(yearNum,monthNum,dateNum));
    });

    next.addEventListener("click",function () {
        riliContent.innerHTML ="";
        monthNum++;
        everyday(new Date(yearNum,monthNum,dateNum));
    });
    everyday(newDate);

}

js 实现简单日历效果

html部分

CSS部分

JS部分

猜你喜欢