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                合規國際互聯網加速 OSASE為企業客戶提供高速穩定SD-WAN國際加速解決方案。 廣告
                1、用PHP繪制色素的函數: imagesetpixel($image, $x, $y, $color)。 2、用PHP繪制矩形的函數: imagerectangle($image, $x1, $y1, $x2, $y2, $color)。 下面是做的幾個測試案例: 在真彩色面板中隨機繪制多個顏色不同的色素: $img = imagecreatetruecolor(100, 40); $red = imagecolorallocate($img, 255, 0, 0); imagefill($img, 0, 0, $red); $w = imagesx($img); $h = imagesy($img); for($i=0;$i<300;$i++){ $color = imagecolorallocate($img, mt_rand(0,255), mt_rand(0,255), mt_rand(0,255)); $pix = imagesetpixel($img, mt_rand(0,$w), mt_rand(0,$h), $color); imageline($img, mt_rand(0,$w), mt_rand(0,$h), mt_rand(0,$w), mt_rand(0,$h), $color); } header('Content-type:image/jpeg'); imagejpeg($img); 通過色素在真彩色面板中繪制一條直線: $img = imagecreatetruecolor(300, 300); $color = imagecolorallocate($img, 255, 255, 255); imagefill($img, 0, 0, $color); $red = imagecolorallocate($img, 255, 0, 0); for($i=0;$i<299;$i++){ $pix = imagesetpixel($img, 200, $i, $red); } header('Content-type:image/jpeg'); imagejpeg($img); 在真彩色面板中隨機繪制顏色不同的矩形: /*真彩色面板*/ $img = imagecreatetruecolor(400, 400); $red = imagecolorallocate($img, 255, 0, 0); imagefill($img, 0, 0, $red); $w = imagesx($img); $h = imagesy($img); for($i=0;$i<300;$i++){ $color = imagecolorallocate($img, mt_rand(0,255), mt_rand(0,255), mt_rand(0,255)); $rect = imagerectangle($img, mt_rand(0,$w), mt_rand(0,$h), mt_rand(0,$w), mt_rand(0,$h), $color); imagesetthickness($img, 20); } header('Content-type:image/jpeg'); imagejpeg($img); /*圖像面板*/ $fileName = 'test.jpg'; $img = imagecreatefromjpeg($fileName); $w = imagesx($img); $h = imagesy($img); for($i=0;$i<300;$i++){ $color = imagecolorallocate($img, mt_rand(0,255), mt_rand(0,255), mt_rand(0,255)); $rect = imagerectangle($img, mt_rand(0,$w), mt_rand(0,$h), mt_rand(0,$w), mt_rand(0,$h), $color); imagesetthickness($img, 1); } header('Content-type:image/jpeg'); imagejpeg($img);
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                              哎呀哎呀视频在线观看