{"id":28736,"date":"2023-03-21T14:49:01","date_gmt":"2023-05-23T00:55:28","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%9c%a8webarena%e4%b8%8a%e7%9a%84%e7%ac%ac35%e4%b8%aaubuntu%e7%89%88%e6%9c%ac%e3%80%82-2\/"},"modified":"2025-08-12T09:50:16","modified_gmt":"2025-08-12T01:50:16","slug":"%e5%9c%a8webarena%e4%b8%8a%e7%9a%84%e7%ac%ac35%e4%b8%aaubuntu%e7%89%88%e6%9c%ac%e3%80%82-2","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%9c%a8webarena%e4%b8%8a%e7%9a%84%e7%ac%ac35%e4%b8%aaubuntu%e7%89%88%e6%9c%ac%e3%80%82-2\/","title":{"rendered":"\u5728WebArena\u4e0a\u7684\u7b2c35\u4e2aUbuntu\u7248\u672c"},"content":{"rendered":"<h1>\u6982\u8981<\/h1>\n<p>webarena\u3067ubuntu18.04\u3084\u3063\u3066\u307f\u305f\u3002<br \/>\napache2.4,php7.2\u3084\u3063\u3066\u307f\u305f\u3002<br \/>\nimg\u306ecors\u3084\u3063\u3066\u307f\u305f\u3002<\/p>\n<h1>\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9<\/h1>\n<pre class=\"post-pre\"><code>&lt;?php\r\n    header(\"Access-Control-Allow-Origin: *\");\r\n    header('Content-type: image\/png');\r\n    $fp = fopen(\".\/png\/test.png\", \"r\");\r\n    while (!feof($fp))\r\n    {\r\n        $line = fgets($fp);\r\n        print($line);\r\n    }\r\n    fclose($fp);\r\n?&gt;\r\n<\/code><\/pre>\n<h1>\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9<\/h1>\n<pre class=\"post-pre\"><code>&lt;html&gt;\r\n  &lt;head&gt;\r\n    &lt;link rel=\"stylesheet\" href=\"style.css\"&gt;\r\n    &lt;script src=\"\/\/code.jquery.com\/jquery-1.8.3.min.js\"&gt;&lt;\/script&gt;\r\n  &lt;\/head&gt;\r\n  &lt;body&gt;\r\n    &lt;h1&gt;Hello Plunker!&lt;\/h1&gt;\r\n    &lt;img src=\"http:\/\/\/test22.php\" alt=\"\" crossOrigin=\"anonymous\"&gt;\r\n    &lt;script&gt;\r\n$(window).load(function() {\r\n    $(\"img\").each(function() {\r\n        var canvas = document.createElement(\"canvas\");\r\n        var ctx = canvas.getContext(\"2d\");\r\n        var img = new Image();\r\n        img.crossOrigin = ''; \r\n        img.src = $(this).attr(\"src\");\r\n        canvas.width = img.width;\r\n        canvas.height = img.height;\r\n        ctx.drawImage(img, 0, 0);\r\n        var pixels = ctx.getImageData(0, 0, canvas.width, canvas.height);\r\n        for (var y = 0; y &lt; pixels.height; y++) \r\n        {\r\n            for (var x = 0; x &lt; pixels.width; x++)\r\n            {\r\n                var i = (y * 4) * pixels.width + x * 4;\r\n                var rgb = parseInt((pixels.data[i] + pixels.data[i + 1] + pixels.data[i + 2]) \/ 3, 10);\r\n                pixels.data[i] = rgb;\r\n                pixels.data[i + 1] = rgb;\r\n                pixels.data[i + 2] = rgb;\r\n            }\r\n        }\r\n        ctx.putImageData(pixels, 0, 0, 0, 0, pixels.width, pixels.height);\r\n        $(this).attr(\"src\", canvas.toDataURL());\r\n    });\r\n});\r\n&lt;\/script&gt;\r\n  &lt;\/body&gt;\r\n&lt;\/html&gt;\r\n<\/code><\/pre>\n<h1>\u6210\u679c\u7269<\/h1>\n<p>\u4ee5\u4e0a\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6982\u8981 webarena\u3067ubuntu18.04\u3084\u3063\u3066\u307f\u305f\u3002 apache2.4,php7.2\u3084\u3063\u3066\u307f\u305f\u3002 im [&hellip;]<\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[227],"class_list":["post-28736","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-227"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - 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