<input type="button" value="" style="width:20px;height:20px;" id="<?php echo $rows."_".$cols;?>" onclick = "chuli('<?php echo $rows."_".$cols; ?>')">
<script type="text/javascript"></script>
<script>
function chuli(XB){
XB.value ="1";
}
</script>
$rows."_".$cols 就是一个二维数组的下表
为什么点击后 那个button的 值没改变

------解决思路----------------------
function chuli(XB){
document.getElementById(XB).value ="1";
}