效果圖:
<img src="https://img.php.cn/upload/article/000/023/547/7791f6c3ce06e2e31c49919fd4266443-0.jpg" alt=""><br>
<!--代码展示--> <html> <head> <metahttp-equiv="Content-Type"content="text/html; charset=gb2312"/> <title>无标题文档</title> <scripttype="text/javascript"> //定义函数:构建要显示的时间日期字符串 function showTime() { //创建Date对象 var today = new Date(); //分别取出年、月、日、时、分、秒 var year = today.getFullYear(); var month = today.getMonth()+1; var day = today.getDate(); var hours = today.getHours(); var minutes = today.getMinutes(); var seconds = today.getSeconds(); //如果是单个数,则前面补0 month = month<10 ? "0"+month : month; day = day <10 ? "0"+day : day; hours = hours<10 ? "0"+hours : hours; minutes= minutes<10 ? "0"+minutes : minutes; seconds= seconds<10 ? "0"+seconds : seconds; //构建要输出的字符串 varstr = year+"年"+month+"月"+day+"日 "+hours+":"+minutes+":"+seconds; //获取id=result的对象 varobj = document.getElementById("result"); //将str的内容写入到id=result的<p>中去 obj.innerHTML = str; //延时器 window.setTimeout("showTime()",1000); } </script> <styletype="text/css"> #result{ width:500px; border:1px solid #CCCCCC; background:#FFFFCC; margin:50px auto; font-size:24px; color:#FF0000; padding:20px; } </style> </head> <bodyonload="showTime()"> <pid="result"></p> </body> </html>
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