<form action="1.php" method="post" onsubmit="return confirm('ÄãÈ·¶¨ÒªÌá½»Âð?');">
<input type="text" name="s">
<input type="submit" value="tijiao">
</form>
<input type="text" name="s">
<input type="submit" value="tijiao">
</form>
<input type="text" name="s">
<input type="submit" value="tijiao">
</form>
<input type=submit onclick="return (confirm('确 定 要 删 除 么 ? '))">
</form>