<p id="timeShow">17:0:50</p><script> setInterval("time()", 1000); function time() {	 var time=$("#timeShow").html();     var timeArr= new Array(); //定义一数组      timeArr=time.split(":"); //字符分割	 	 sec=Number(timeArr[2])+Number(1);	 	 	 var d = new Date()	 d.setHours(timeArr[0],timeArr[1],sec);	 	 var hours=d.getHours();     var minutes=d.getMinutes();	 var sec=d.getSeconds();	 	 var timeStr=hours+":"+minutes+":"+sec;	 $("#timeShow").html(timeStr);	           }   </script>