<p>手表</p>
<p id="demo"></p>
<script>
var myVar = setInterval(function () {
myTimer()
}, 1000)
function myTimer() {
var d = new Date();
var t = d.toLocaleTimeString();
document.getElementById("demo").innerHTML = t;
}
</script>
setInterval 实现时钟功能
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转载自blog.csdn.net/mp624183768/article/details/81001003
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