获取当前时间精确到毫秒

 var myDate = new Date();
      var y=myDate.getFullYear();    //获取完整的年份(4位,1970-????)
      var m=myDate.getMonth()+1;       //获取当前月份(0-11,0代表1月)
      var d=myDate.getDate();        //获取当前日(1-31)
      var t=myDate.getTime();        //获取当前时间(从1970.1.1开始的毫秒数)
      var h=myDate.getHours();       //获取当前小时数(0-23)
      var min=myDate.getMinutes();     //获取当前分钟数(0-59)
      var s=myDate.getSeconds();     //获取当前秒数(0-59)
      var ms=myDate.getMilliseconds();    //获取当前毫秒数(0-999)
      if (m >= 1 && m <= 9) {
        m = "0" + m;
      }
      if (d >= 0 && d <= 9) {
        d = "0" + d;
      }
      if (h >= 0 && h <= 9) {
        h = "0" + h;
      }
      if (min >= 0 && min <= 9) {
        min = "0" + min;
      }
      if (s >= 0 && s <= 9) {
        s = "0" + s;
      }
      var fh='-';
      var fh2=':'
      var tolocaltime=y+fh+m+fh+d+' '+h+fh2+min+fh2+s+fh2+ms;//当前时间