实时显示时间（HTML+JS）

男娘i 2022-05-30 11:11 378阅读 0赞

### 原文地址：[http://blog.csdn.net/qq\_35952946/article/details/56012654][http_blog.csdn.net_qq_35952946_article_details_56012654] ###

**方法一：**

<p id="time1" style="color: blueviolet;"></p>
    <script> function mytime(){ var a = new Date(); var b = a.toLocaleTimeString(); var c = a.toLocaleDateString(); document.getElementById("time1").innerHTML = c+"&nbsp"+b; } setInterval(function() { mytime()},1000); </script>
     
      
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**方法二：**

<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
    <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
    <html>
    <head>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
    
    <script type="text/javascript"> function getTime() { var dateObj = new Date(); var year = dateObj.getFullYear();//年 var month = dateObj.getMonth()+1;//月 (注意：月份+1) var date = dateObj.getDate();//日 var day = dateObj.getDay(); var weeks = ["星期日","星期一","星期二","星期三","星期四","星期五","星期六"]; var week = weeks[day];//根据day值，获取星期数组中的星期数。 var hours = dateObj.getHours();//小时 var minutes = dateObj.getMinutes();//分钟 var seconds = dateObj.getSeconds();//秒 if(month<10){ month = "0"+month; } if(date<10){ date = "0"+date; } if(hours<10){ hours = "0"+hours; } if(minutes<10){ minutes = "0"+minutes; } if(seconds<10){ seconds = "0"+seconds; } var newDate = year+"年"+month+"月"+date+"日"+hours+":"+minutes+":"+seconds+"&nbsp &nbsp"+week; document.getElementById("date1").innerHTML = "时间显示：" + newDate;//在div中写入时间 setTimeout('getTime()', 500);//每隔500ms执行一次getTime() } </script>
    
    <title>实时显示时间</title>
    </head>
    <body onload="getTime()">
        <div id="date1"></div>
    </body>
    </html>
     
      
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**区别：**  
\*setInterval在执行完一次代码之后，经过了那个固定的时间间隔，它还会自动重复执行代码。  
而setTimeout只执行一次那段代码。

[http_blog.csdn.net_qq_35952946_article_details_56012654]: http://blog.csdn.net/qq_35952946/article/details/56012654