<script>
当页面加载时调用
window.onload = function() {
//计时器 1000秒
setInterval(function() {
var date = new Date();
var year = date.getFullYear(); //获取当前年份
var mon = date.getMonth() + 1; //获取当前月份
var da = date.getDate(); //获取当前日
var day = date.getDay(); //获取当前星期几
var h = date.getHours(); //获取小时
var m = date.getMinutes(); //获取分钟
var s = date.getSeconds(); //获取秒
var d = document.getElementById('show');
//判断当数字小于等于9时 显示 01 02 ----- 08 09
if (mon >= 1 && mon <= 9) {
mon = "0" + mon;
}
if (da >= 0 && da <= 9) {
da = "0" + da;
}
if (h >= 0 && h <= 9) {
h = "0" + h;
}
if (m >= 0 && m <= 9) {
m = "0" + m;
}
if (s >= 0 && s <= 9) {
s = "0" + s;
}
d.innerHTML = year + '-' + mon + '-' + da + ' ' + h + ':' + m + ':' + s;
}, 1000)
}
</script>