<meta http-equiv="Content-Type" content="text/html;
charset=utf-8"/>
<html>
<body>
<form method="POST" action="">
<p>数<input type="text" name="1" size="5" >
<input type="submit" name="submit" value="提交">
</p>
<?php
echo $_POST["1"];
if($_POST["submit"] != "提交"){
$a=1;
while($a <= $_POST["1"]){
$a++;
echo $a;
}
}
?>
</body>
</html>
为啥显示不出来如给个数，123...求解
页面
进去…