按下方向键要停一下才能移动，能否不停顿呢？（内附源码）

Question

try:
/////////////////START SYSTEM JS FUNCTION//////////////////
var keydown = false;
function document.onkeyup()
{
keydown = false;
}
function document.onkeydown()
{
  if(/^(3[789]|40)$/.test(event.keyCode)) {
  keydown = true;
 setTimeout("xkeydown("+event.keyCode+")",10);
  }
  return false
}
function xkeydown(c)
{
if(c ==37)  //left
  {
    if(parseInt(div_player4.style.left)!=inpu_xy.value*0)
    {
      div_player4.style.left=parseInt(div_player4.style.left)-10
    }
  }
  if(c==38)  //up
  {
    if(parseInt(div_player4.style.top)!=inpu_xy.value*0)
    {
      div_player4.style.top=parseInt(div_player4.style.top)-10
    }
  }
  if(c==39)  //right
  {
    if(parseInt(div_player4.style.left)!=parseInt(inpu_xy.value)*8)
    {
      div_player4.style.left=parseInt(div_player4.style.left)+10
    }
  }
  if(c==40)  //down
  {
    if(parseInt(div_player4.style.top)!=parseInt(inpu_xy.value)*6)
    {
      div_player4.style.top=parseInt(div_player4.style.top)+10
    }
  }
  if(keydown) setTimeout("xkeydown("+c+")",10);
}/////////////////END SYSTEM JS FUNCTION//////////////////</script>

Answer 1

偶觉得办不到，这应该是WIN下所有光标的特征。

Answer 2

写出来喽~~~~~~~~~给大家看看：）<META HTTP-EQUIV=Content-Type CONTENT=text/html; charset=gb2312><br><br><br><br><input id=inpu_xy value=60 style='display:none'><input id=inpu_speed value=1 style='display:none'><input id=inpu_step value=10 style='display:none'><input id=inpu_left value=0><input id=inpu_up value=0><input id=inpu_right value=0><input id=inpu_down value=0>
<div id=div_player4 Style='
 text-align:center;
 position:absolute;
 width:expression(inpu_xy.value);
 height:expression(inpu_xy.value);
 top:expression(inpu_xy.value*6);
 left:expression(inpu_xy.value*8);
 color:red;
 background-color:white;
 overflow:hidden;
 padding-top:
 expression((offsetHeight-firstChild.offsetHeight*firstChild.style.zoom)/2)
'><xmp style='zoom:0.8'>
　╭══╮
╭╯□卐║ 
╰⊙═⊙╯
</xmp></div><script>/////////////////START JS//////////////////</script>
<script>/////////////////START SYSTEM JS FUNCTION//////////////////function document.onkeydown()
{
  if(event.keyCode==37&&inpu_left.value==0)  //left
  {
inpu_left.value=1
  }
  if(event.keyCode==38&&inpu_up.value==0)  //up
  {
inpu_up.value=1
  }
  if(event.keyCode==39&&inpu_right.value==0)  //right
  {
inpu_right.value=1
  }
  if(event.keyCode==40&&inpu_down.value==0)  //down
  {
inpu_down.value=1
  }
      return false
}function document.onkeyup()
{
  if(event.keyCode==37)  //left
  {
inpu_left.value=0
  }
  if(event.keyCode==38)  //left
  {
inpu_up.value=0
  }
  if(event.keyCode==39)  //left
  {
inpu_right.value=0
  }
  if(event.keyCode==40)  //left
  {
inpu_down.value=0
  }
      return false
}function f_refresh()
{
  f_move()
  tt_timeout=setTimeout('f_refresh()',inpu_speed.value)  //refresh time per 'i' seconds
}function f_move()
{
    if(parseInt(div_player4.style.left)!=inpu_xy.value*0&&inpu_left.value==1)  //left
    {
      div_player4.style.left=parseInt(div_player4.style.left)-10
    }
    if(parseInt(div_player4.style.top)!=inpu_xy.value*0&&inpu_up.value==1)  //up
    {
      div_player4.style.top=parseInt(div_player4.style.top)-10
    }
    if(parseInt(div_player4.style.left)!=inpu_xy.value*8&&inpu_right.value==1)  //right
    {
      div_player4.style.left=parseInt(div_player4.style.left)+10
    }
    if(parseInt(div_player4.style.top)!=inpu_xy.value*6&&inpu_down.value==1)  //down
    {
      div_player4.style.top=parseInt(div_player4.style.top)+10
    }
}/////oninit
f_refresh()
/////oninit/////////////////END SYSTEM JS FUNCTION//////////////////</script>
<script>/////////////////END JS//////////////////</script>