while(){}的高级用法

while(){}的高级用法

<?php
/*$ip="127.0.0.1";
if($_SERVER["REMOTE_ADDR"]==$ip){
   header("location:xxx.php");
}else{

      header("location:yyy.php");
}


function limitIp($ip){
if($_SERVER[REMOTE_ADDR]==$ip){
   header("location:XXx.php");
}else{
   header("location:YYY.php");
}
}*/

/*
echo "<table border=1 width=800 align=center>";
echo "<caption><h1>学生成绩</h1></caption>";
$i=0;
$j=0;
while($i<1000){
if($i%10==0){
   if($j++%2==0){
    $bgc="#cccccc";
   }else{
      $bgc="aaffaa";
   }
   //echo "<tr bgcolor=$bgc>";
   echo "<tr onmouseover=show(this) onmouseout=noshow(this) bgcolor=".$bgc.">";
}
echo "<td>$i</td>";
if(++$i%10==0){
   echo "</tr>";
}

}
echo "<table>";
*/
echo "<table width=800 border=1 align=center>";
echo "<caption><h1>学生成绩</h1></caption>";
$i=0;
$k=0;
while($i<100){
    if($i%2==0){
    $bgc="#cccccc";
}else{
     $bgc="#aaffaa";
}
echo "<tr onmouseover=show(this) onmouseout=noshow(this) bgcolor=$bgc>";

$j=0;
while($j<10){
  
   echo "<td>$k</td>";
   $j++;
   $k++;
}
echo "</tr>";
$i++;

}
echo "</table>";
?>
<script>
var yuancolor=null;
function show(obj){
yuancolor=obj.style.backgroundColor;
obj.style.backgroundColor="red";
}
function noshow(obj){

obj.style.backgroundColor=yuancolor;
}

</script>