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分享<form action="" method = "post">
<select id ="a" name = 'a' >
<option value = 'a'>a</option>
<option value = 'b'>b</option>
<input type="submit" value="ok" name="submit">
</form>
<?php
if(isset($_POST['submit'])){
$option = $_POST['a'];
echo $option;
}
?>