PHP 处理图片

<?php
$image = imagecreate(200, 200);

$white = imagecolorallocate($image, 0xFF， 0xFF, 0xFF);
$black = imagecolorallocate($image, 0x00， 0x00, 0x00);
imagefilledrectangle($image, 50, 50, 150, 150, $black);

header("Content-Type: image/png");
imagepng($image);
?>

<img src="black.php" />