js 显示日期时间的实例(时间过一秒加1)

<div id="data"><font>2017年10月17日 15:11:11</font></span> 

function showlocale(objd) {  

 var str, colorhead, colorfoot;  

 var yy = objd.getyear();  

 if (yy < 1900) yy = yy + 1900;  var mm = objd.getmonth() + 1;  

 if (mm < 10) mm = '0' + mm;  var dd = objd.getdate();  

 if (dd < 10) dd = '0' + dd;  var hh = objd.gethours();  

 if (hh < 10) hh = '0' + hh;  var mm = objd.getminutes();  

 if (mm < 10) mm = '0' + mm;  var ss = objd.getseconds();  

 if (ss < 10) ss = '0' + ss;  var ww = objd.getday();  

 if (ww == 0) colorhead = "";  

if (ww > 0 && ww < 7) colorhead = "";

str = colorhead + yy + "年" + mm + "月" + dd + "日 " + hh + ":" + mm + ":" + ss + " ";

return (str);

}

function tick() {

var today;

today = new date();

document.getelementbyid("new_data").innerhtml = showlocale(today);

window.settimeout("tick()", 1000);

}

tick();