<?php
$re_var=$_POST['$re_var'];
echo "<form name='form1' method='post' action=''>";
if($_POST['$re_var']!="")
{
echo "<input name='Submit' type='submit' value='修改'>";
}
echo "<input type='reset' name='Submit2' value='重置'>";
echo "<input type='submit' name='Submit3' value='返回'>";
echo "</form>";
?>
$re_var=$_POST['$re_var'];
echo "<form name='form1' method='post' action=''>";
if($_POST['$re_var']!="")
{
echo "<input name='Submit' type='submit' value='修改'>";
}
echo "<input type='reset' name='Submit2' value='重置'>";
echo "<input type='submit' name='Submit3' value='返回'>";
echo "</form>";
?>
$value='1';
$style = 'none';
if(!isset($value)){//$value 是传过来的变量
$style = '';
}
?>
<form>
<input type='button' style="display:'<?php echo $style;?>'" value='修改'>
<input type='button' value='重置'>
<input type='button' value='返回'>
</form>
把$value='1'=>$value='';(或者去掉)就可以看到修改这个按纽没了