Date 得到日期返回相应内容

<script>
var txts=['早上好','中午好','下午好']
var p=document.getElementsByTagName('p')[0]
var p2=document.getElementsByTagName('p')[1]
var date=new Date()
var hou=date.getHours()
if (hou<10) {
p.innerHTML=txts[0]
p2.innerHTML=date
}else if (hou>10&&hou<19) {
p.innerHTML=txts[1]
p2.innerHTML=date
}else{
p.innerHTML=txts[2]
p2.innerHTML=date
}
</script>