month和week 从0开始 所以要加一
<script>
function time(){
var date=new Date();
var year=date.getFullYear();
var month=date.getMonth()+1;
var day=date.getDate();
var week="日一二三四五六".charAt(date.getDay());
var hour=date.getHours();
var minute=date.getMinutes();
var second=date.getSeconds();
var current=year+"-"+month+"-"+day+"-"+""+"星期"+week+":"+hour+":"+minute+":"+second;
console.log(current);
}
time();
setInterval("time()",1000);
</script>
2019-10-21-星期一:13:45:27
<script>
function time(){
}
time();
setInterval("time()",1000);
</script>
2019-10-21-星期一:13:55:08