html 秒和毫秒

Posted 2021-05-11

  <form name="counter" style="margin: 0px;">
              <span style="font-size: 20px;">There is
              <input value="103.2" name="d2" style="border: 0px none;
  background-color: rgb(255, 255, 255); font-size: 28px; color: blue;
  font-weight: bold; width: 77px; padding-top: 5px;" type="text">
             Seconds Left!
                 </span>
            </form>


  
            <script>

  <!--

  //

  var milisec=0

  var seconds=120

  document.counter.d2.value='120'



  function display(){

  if (milisec<=0){

      milisec=9

      seconds-=1

  }

  if (seconds<=-1){

      milisec=0

      seconds+=1

  }

  else

      milisec-=1

      document.counter.d2.value=seconds+"."+milisec

      setTimeout("display()",100)

  }

  display()

  -->

  </script>