js获取当前系统时间

function show(){
    var mydate = new Date();
    var str = "" + mydate.getFullYear() + "年";
    str += (mydate.getMonth()+1) + "月";
    str += mydate.getDate() + "日";
    str+=mydate.getHours() + "时";
    str+=mydate.getMinutes() + "分";
    str+=mydate.getSeconds() + "秒";
    return str;

  
}

  function show1(){
       function p(s) {
           return s < 10 ? '0' + s: s;
       }

       var myDate = new Date();
//获取当前年
       var year=myDate.getFullYear();
//获取当前月
       var month=myDate.getMonth()+1;
//获取当前日
       var date=myDate.getDate();
       var h=myDate.getHours();       //获取当前小时数(0-23)
       var m=myDate.getMinutes();     //获取当前分钟数(0-59)
       var s=myDate.getSeconds();

       var now=year+'-'+p(month)+"-"+p(date)+" "+p(h)+':'+p(m)+":"+p(s);
       return now;

   }

将当前时间存到点击的li里面去

点击之后

两种时间格式随便用都可以