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HTML获取当前时间并显示在网页上

简单通过html+js代码实现网页显示时间

首先在页面中我们直接写一个标签,然后给标签定义一个id,

51福利网

这里我们用什么标签都可以,我们就用<span></span>演示吧,

代码如下:

<span id="clock" ></span>
    <script type="text/javascript">
    var clock = new Clock();
    clock.display(document.getElementById("clock"));
    </script>

上面我们实例化了一个Clock的对象,这里我们就在外部定义一个Clock的类,

获取当前时间并进行时间的格式化,代码如下:

function Clock() {
    var date = new Date();
    this.year = date.getFullYear();
    this.month = date.getMonth() + 1;
    this.date = date.getDate();
    this.day = new Array("星期日", "星期一", "星期二", "星期三", "星期四", "星期五", "星期六")[date.getDay()];
    this.hour = date.getHours() < 10 ? "0" + date.getHours() : date.getHours();
    this.minute = date.getMinutes() < 10 ? "0" + date.getMinutes() : date.getMinutes();
    this.second = date.getSeconds() < 10 ? "0" + date.getSeconds() : date.getSeconds();
 
    this.toString = function() {
        return "现在是:" + this.year + "年" + this.month + "月" + this.date + "日 " + this.hour + ":" + this.minute + ":" + this.second + " " + this.day; 
    };
    
    this.toSimpleDate = function() {
        return this.year + "-" + this.month + "-" + this.date;
    };
    
    this.toDetailDate = function() {
        return this.year + "-" + this.month + "-" + this.date + " " + this.hour + ":" + this.minute + ":" + this.second;
    };
    
    this.display = function(ele) {
        var clock = new Clock();
        ele.innerHTML = clock.toString();
        window.setTimeout(function() {clock.display(ele);}, 1000);
    };
}

之后我们在页面头部中引入该js就好了

<script src="js/Clock.js" type=text/javascript></script>

这样就实现了 我们所需的显示当前时间的作用

当然也可以自己修改样式。现在贴上我修改后得完整格式;

我是直接在一个页面弄得。直接在

需要显示的时间地方加入代码(简单设置了居中显示)

 <span id="clock"  style="text-align: center;display:block;"></span>

然后在后面加上需要支持的js代码

 <script type="text/javascript">
    var clock = new Clock();
    clock.display(document.getElementById("clock"));
 


function Clock() {
    var date = new Date();
    this.year = date.getFullYear();
    this.month = date.getMonth() + 1;
    this.date = date.getDate();
    this.day = new Array("星期日", "星期一", "星期二", "星期三", "星期四", "星期五", "星期六")[date.getDay()];
    this.hour = date.getHours() < 10 ? "0" + date.getHours() : date.getHours();
    this.minute = date.getMinutes() < 10 ? "0" + date.getMinutes() : date.getMinutes();
    this.second = date.getSeconds() < 10 ? "0" + date.getSeconds() : date.getSeconds();
 
    this.toString = function() {
        return "时间:" + this.year + "年" + this.month + "月" + this.date + "日 " + this.hour + ":" + this.minute + ":" + this.second + " " + this.day; 
    };
    
    this.toSimpleDate = function() {
        return this.year + "-" + this.month + "-" + this.date;
    };
    
    this.toDetailDate = function() {
        return this.year + "-" + this.month + "-" + this.date + " " + this.hour + ":" + this.minute + ":" + this.second;
    };
    
    this.display = function(ele) {
        var clock = new Clock();
        ele.innerHTML = clock.toString();
        window.setTimeout(function() {clock.display(ele);}, 1000);
    };
}


  </script>

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文章名称:《HTML获取当前时间并显示在网页上》-51福利网
文章链接:https://www.51wuditu.com/9584
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