{"id":8204,"date":"2018-11-26T01:22:05","date_gmt":"2018-11-25T17:22:05","guid":{"rendered":"https:\/\/www.zhangxinxu.com\/wordpress\/?p=8204"},"modified":"2018-11-26T01:32:29","modified_gmt":"2018-11-25T17:32:29","slug":"css-paint-api-canvas","status":"publish","type":"post","link":"https:\/\/www.zhangxinxu.com\/wordpress\/2018\/11\/css-paint-api-canvas\/","title":{"rendered":"CSS\u5c4a\u7684\u7ed8\u56fe\u677fCSS Paint API\u7b80\u4ecb"},"content":{"rendered":"

by zhangxinxu<\/a> from https:\/\/www.zhangxinxu.com\/wordpress\/?p=8204<\/a>
\n\u672c\u6587\u53ef\u5168\u6587\u8f6c\u8f7d\uff0c\u4e2a\u4eba\u7f51\u7ad9\u65e0\u9700\u6388\u6743\uff0c\u53ea\u8981\u4fdd\u7559\u539f\u4f5c\u8005\u3001\u51fa\u5904\u4ee5\u53ca\u6587\u4e2d\u94fe\u63a5\u5373\u53ef\uff0c\u4efb\u4f55\u7f51\u7ad9\u5747\u53ef\u6458\u8981\u805a\u5408\uff0c\u5546\u7528\u8bf7\u8054\u7cfb\u6388\u6743\u3002<\/p>\n

\u4e00\u3001\u628aCanvas\u56fe\u7247\u4f5c\u4e3aCSS\u80cc\u666f\u56fe\u7247<\/h3>\n

CSS Paint API\u53ef\u4ee5\u7b80\u5355\u7406\u89e3\u4e3a\uff08\u5b9e\u9645\u4e0d\u80fd\u7b49\u540c\uff09\u628aCanvas\u753b\u5e03\u4f5c\u4e3a\u666e\u901a\u5143\u7d20\u7684\u80cc\u666f\u56fe\u7247\u3002<\/p>\n

\u4e5f\u5c31\u662fCSS\u7684background-image<\/code>\u5c31\u662f\u4e00\u4e2aCanvas\uff0c\u6211\u4eec\u53ef\u4ee5\u5229\u7528Canvas\u7edd\u5927\u591a\u6570API\u7ed8\u5236\u5404\u79cd\u590d\u6742\u6709\u8da3\u7684\u56fe\u5f62\u6548\u679c\uff0c\u4ee5\u4e00\u79cd\u66f4\u9ad8\u6548\u7684\u65b9\u5f0f\u4e30\u5bccweb\u9875\u9762\u5143\u7d20\u7684\u89c6\u89c9\u5c55\u73b0\u3002\u4f8b\u5982\uff0c\u84dd\u8272\u6309\u94ae\u4e0d\u4ec5\u4ec5\u662f\u4e2a\u84dd\u8272\u80cc\u666f\uff0c\u4e0a\u9762\u8fd8\u6709\u767d\u4e91\u6f02\u6f02\u7684\u6548\u679c\uff0c\u60f3\u60f3\u5c31\u5f88\u68d2\uff01<\/p>\n

\u4e8c\u3001\u4e00\u4e2a\u7b80\u5355\u7684\u6848\u4f8b\u4e86\u89e3CSS Paint API<\/h3>\n

\u4f8b\u5982\uff0c\u6211\u4eec\u5e0c\u671b\u521b\u5efa\u4e00\u4e2a\u900f\u660e\u56fe\u7247\u80cc\u666f\u3002\u7c7b\u4f3c\u4e0b\u9762\u8fd9\u6837\uff1a<\/p>\n

<\/canvas><\/p>\n

\u5219\u5b8c\u6574\u7684CSS\u4ee3\u7801\u548cJS\u90e8\u5206\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n

.box {\r\n    width: 180px; height: 180px;\r\n    \/* transparent-grid\u81ea\u5df1\u547d\u540d *\/<\/span>\r\n    background-image: paint(transparent-grid);\r\n}<\/pre>\n
\u7136\u540e\u7ed8\u5236\u56fe\u5f62\u7684JS\u52a1\u5fc5\u4f5c\u4e3a\u6a21\u5757\u5f15\u5165\uff0c\u4f8b\u5982\uff0c\u5efa\u4e00\u4e2a\u540d\u4e3apaint-grid.js\u7684\u6587\u4ef6\uff0c\u5728\u9875\u9762\u4e0a\u5f15\u5165\uff1a<\/p>\n
if (window.CSS) {\r\n    CSS.paintWorklet.addModule('paint-grid.js');\r\n}<\/pre>\n
paint-grid.js\u6587\u4ef6\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n
\/\/ transparent-grid\u547d\u540d\u548cCSS\u4e2d\u7684\u5bf9\u5e94<\/span>\r\nregisterPaint('transparent-grid', class {\r\n    paint(context, size) {\r\n       \/\/ \u8fd9\u91cc\u5c31\u662f\u7ed8\u5236\u7684\u4ee3\u7801\u4e86....<\/span>\r\n    }\r\n});<\/pre>\n
\u4ee5\u4e0a\u5c31\u662fCSS Paint API\u4f7f\u7528\u7684\u56fa\u5b9a\u5957\u8def\uff1a<\/p>\n
    \n
  1. CSS\u4e2dpaint(abc)\uff1b<\/li>\n
  2. JS\u6dfb\u52a0\u6a21\u5757CSS.paintWorklet.addModule(‘xxx.js’);<\/li>\n
  3. xxx.js\u4e2d\u4ee3\u7801\u5957\u8def\u56fa\u5b9a\uff0c\u5728\u4e0b\u9762\u6ce8\u91ca\u4f4d\u7f6e\u5199\u7ed8\u5236\u4ee3\u7801\u5373\u53ef\uff1b\n
    registerPaint('abc', class {\r\n    paint(context, size, properties) {\r\n       \/\/ \u7ed8\u5236\u4ee3\u7801\u5728\u8fd9\u91cc....<\/span>\r\n    }\r\n});<\/pre>\n<\/li>\n<\/ol>\n
    \u5176\u4e2dpaint(context, size)<\/code>\u4e2d\u7684\u4e24\u4e2a\u53c2\u6570\u53ef\u4ee5\u7a0d\u5fae\u4ecb\u7ecd\u4e0b\uff1a<\/p>\n
    \n
    context<\/strong><\/dt>\n
    \u4e3a\u7ed8\u5236\u4e0a\u4e0b\u6587\uff0c\u5168\u79f0\u662fPaintRenderingContext2D\uff0c\u548cCanvas\u7684CanvasRenderingContext2D<\/a>\u662f\u8fd1\u4eb2\uff0cAPI\u5168\u90e8\u6765\u81eaCanvas\uff0c\u4e00\u6a21\u4e00\u6837\uff0c\u4e0d\u8fc7\u7531\u4e8e\u5b89\u5168\u9650\u5236\uff0c\u6709\u4e9bCanvas\u4e2d\u7684\u6709\u4e9bAPI\u662f\u4e0d\u80fd\u4f7f\u7528\u7684\uff0c\u53ef\u7528\u548c\u4e0d\u53ef\u7528\u7684API\u89c1\u4e0b\u8868\uff1a<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
    Paint\u53ef\u7528API<\/th>\nPaint\u4e0d\u53ef\u7528API<\/th>\n<\/tr>\n<\/thead>\n
    CanvasState<\/td>\nCanvasImageData<\/a><\/td>\n<\/tr>\n
    CanvasTransform<\/a><\/td>\nCanvasUserInterface<\/td>\n<\/tr>\n
    CanvasCompositing<\/a><\/td>\nCanvasText<\/td>\n<\/tr>\n
    CanvasImageSmoothing<\/td>\nCanvasTextDrawingStyles<\/td>\n<\/tr>\n
    CanvasFillStrokeStyles<\/td>\n–<\/td>\n<\/tr>\n
    CanvasShadowStyles<\/td>\n–<\/td>\n<\/tr>\n
    CanvasRect<\/td>\n–<\/td>\n<\/tr>\n
    CanvasDrawPath<\/td>\n–<\/td>\n<\/tr>\n
    CanvasDrawImage<\/a><\/td>\n–<\/td>\n<\/tr>\n
    CanvasPathDrawingStyles<\/td>\n–<\/td>\n<\/tr>\n
    CanvasPath<\/td>\n–<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/dd>\n
    size<\/strong><\/dt>\n
    size<\/code>\u662f\u4e00\u4e2a\u5305\u542b\u4e86\u7ed8\u5236\u5c3a\u5bf8\u7684\u5bf9\u8c61\uff0c\u6570\u636e\u7ed3\u6784\u5982\u4e0b\uff1a<\/p>\n
    {\r\n    width: 180,\r\n    height: 180\r\n}<\/pre>\n
    size<\/code>\u7684\u5927\u5c0f\u53d7\u5230background-size<\/code>\u5c5e\u6027\u5927\u5c0f\u7684\u5f71\u54cd\uff0c\u56e0\u6b64\uff0c\u5bf9\u4e8e\u91cd\u590d\u80cc\u666f\uff0c\u53ef\u4ee5\u501f\u52a9background-repeat\u8fdb\u884c\u5e73\u94fa\u5faa\u73af\uff0c\u4e0d\u7528\u975e\u5f97\u5728\u7ed8\u5236\u7684JS\u4ee3\u7801\u4e2d\u5faa\u73af\u3002\u4f8b\u5982\uff0c\u4e0b\u9762\u5373\u5c06\u8981\u5c55\u793a\u7684demo\u6548\u679c\uff0c\u4e5f\u53ef\u4ee5\u8fd9\u4e48\u5b9e\u73b0\uff0cCSS\u90e8\u5206\uff1a<\/p>\n
    .box {\r\n    width: 180px; height: 180px;\r\n    background-image: paint(transparent-grid);\r\n    background-size: 16px 16px;\r\n}<\/pre>\n
    \u7136\u540e\uff0cpaint-grid.js\u4e2d\u53ea\u9700\u8981\u586b\u5145\u767d-\u7070-\u7070-\u767d\uff0c4\u4e2a\u683c\u5b50\u5c31\u597d\u4e86\uff0c\u65e0\u9700\u5faa\u73af\u3002\n<\/dd>\n
    properties<\/strong><\/dt>\n
    \u53ef\u4ee5\u7528\u6765\u83b7\u5f97get\u5230\u7684CSS\u5c5e\u6027\u548c\u5c5e\u6027\u503c\uff0c\u5305\u62ecCSS\u53d8\u91cf\u503c\uff1b\u4ee5\u53ca\u5176\u4ed6\u4e00\u4e9b\u53c2\u6570\u3002<\/dd>\n<\/dl>\n
    \n
    \u773c\u89c1\u4e3a\u5b9e\uff0c\u60a8\u53ef\u4ee5\u72e0\u72e0\u5730\u70b9\u51fb\u8fd9\u91cc\uff1aCSS Paint API\u7ed8\u5236\u900f\u660e\u683c\u5b50\u4f5c\u4e3a\u80cc\u666fdemo<\/a>\uff08\u76ee\u524d\u4ec5Chrome\u6709\u6548\u679c\uff09<\/p>\n
    \u6548\u679c\u5982\u4e0b\u622a\u56fe\uff1a<\/p>\n
    \"\u900f\u660e\u683c\u5b50\u6548\u679cdemo\"<\/p>\n
    paint-grid.js\u4e2d\u7684\u5b8c\u6574\u7ed8\u5236\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n
    registerPaint('transparent-grid', class {\r\n    paint(context, size) {\r\n        \/\/ \u4e24\u4e2a\u683c\u5b50\u989c\u8272<\/span>\r\n        var color1 = '#fff', color2 = '#eee';\r\n        \/\/ \u683c\u5b50\u5c3a\u5bf8<\/span>\r\n        var units = 8;\r\n        \/\/ \u6a2a\u8f74\u6570\u8f74\u5faa\u73af\u904d\u5386\u4e0b<\/span>\r\n        for (var x = 0; x < size.width; x += units) {\r\n            for (var y = 0; y < size.height; y += units) {\r\n                context.fillStyle = (x + y) % (units * 2) === 0 ? color1 : color2;\r\n                context.fillRect(x, y, units, units);\r\n            }\r\n        }\r\n    }\r\n});<\/pre>\n
    \u8865\u5145\uff1a<\/strong>
    \n\u7c7b\u4f3c\u683c\u5b50\u8fd9\u7c7b\u91cd\u590d\u80cc\u666f\uff0c\u53ef\u4ee5\u501f\u52a9background-repeat<\/code>\u8fdb\u884c\u5e73\u94fa\u5faa\u73af\uff0c\u4e0d\u7528\u975e\u5f97\u5728\u7ed8\u5236\u7684JS\u4ee3\u7801\u4e2d\u5faa\u73af\uff0c\u4e0d\u8fc7\u9700\u8981\u501f\u52a9background-size<\/code>\u5c5e\u6027\u5e2e\u52a9\uff0c\u6539\u53d8\u7ed8\u5236\u7684\u5c3a\u5bf8\u3002\u4f8b\u5982\uff0c\u4e0a\u9762demo\u6548\u679c\uff0c\u4e5f\u53ef\u4ee5\u8fd9\u4e48\u5b9e\u73b0\uff0cCSS\u90e8\u5206\uff1a<\/p>\n
    .box {\r\n    width: 180px; height: 180px;\r\n    background-image: paint(transparent-grid);\r\n    background-size: 16px 16px;<\/span>\r\n}<\/pre>\n
    \u7136\u540e\uff0cpaint-grid.js\u4e2d\u53ea\u9700\u8981\u586b\u5145\u767d-\u7070-\u7070-\u767d\uff0c4\u4e2a\u683c\u5b50\u5c31\u597d\u4e86\uff0c\u65e0\u9700\u5faa\u73af\u3002<\/p>\n
    registerPaint('transparent-grid', class {\r\n    paint(context, size) {\r\n        \/\/ \u4e24\u4e2a\u683c\u5b50\u989c\u8272<\/span>\r\n        var color1 = '#fff', color2 = '#eee';\r\n        \/\/ \u4e24\u4e2a\u767d\u8272\u683c\u5b50<\/span>\r\n        context.fillStyle = color1;\r\n        context.fillRect(0, 0, 8, 8);\r\n        context.fillRect(8, 8, 8, 8);\r\n        \/\/ \u4e24\u4e2a\u7070\u8272\u683c\u5b50<\/span>\r\n        context.fillStyle = color1;\r\n        context.fillRect(0, 4, 8, 8);\r\n        context.fillRect(4, 0, 8, 8);\r\n    }\r\n});<\/pre>\n
    \u8981\u66f4\u901a\u4fd7\u6613\u61c2\u4e9b\u3002<\/p>\n
    \u4e09\u3001CSS\u53d8\u91cf\u8ba9Paint API\u84ec\u835c\u751f\u8f89<\/h3>\n
    \u4e0a\u9762\u7684\u6848\u4f8b\u5c55\u793a\u4e86CSS Paint API\u7684\u57fa\u672c\u4f7f\u7528\uff0c\u4f46\u662f\uff0c\u867d\u7136\u770b\u4e0a\u53bb\u65b0\u6f6e\uff0c\u4f46\u5e76\u6ca1\u6709\u4f53\u73b0\u51faCSS Paint API\u6709\u4ec0\u4e48\u8fc7\u4eba\u4e4b\u5904\u3002<\/p>\n
    \u4f60\u60f3\u554a\uff0c\u6211\u76f4\u63a5\u7528JS\u52a0Canvas API\u7ed8\u5236\u4e00\u4e2a\u683c\u5b50\u56fe\u6848\uff0c\u8f6c\u6362\u6210Base64\uff0c\u76f4\u63a5\u4f5c\u4e3a\u5143\u7d20\u7684\u80cc\u666f\u56fe\u7247\u663e\u793a\uff0c\u4e0d\u4e5f\u662f\u4e00\u6837\u7684\u6548\u679c\uff0c\u800c\u4e14\u517c\u5bb9\u6027\u66f4\u597d\uff08IE9+\u9017\u652f\u6301\uff09\uff0c\u6240\u6709Canvas API\u90fd\u80fd\u7528\uff0c\u6ca1\u6709\u9650\u5236\u3002\u5bf9\u6bd4\u4e00\u770b\uff0c\u5b8c\u5168\u6ca1\u6709\u4f7f\u7528CSS Paint API\u7684\u7406\u7531\u561b\uff01<\/p>\n
    \u6ca1\u9519\uff01\u5982\u679c\u6211\u4eec\u53ea\u662f\u9700\u8981\u4e00\u4e2a\u9759\u6001\u80cc\u666f\uff0c\u771f\u4e0d\u5982\u76f4\u63a5Canvas\u7ed8\u5236\u518d\u8f6c\u6362\u6210Base64\u56fe\u7247\uff08
    \n    toDataURL()\u65b9\u6cd5<\/a>\uff09\u6216\u8005Blob\u56fe\u7247\uff08toBlob()\u65b9\u6cd5<\/a>\uff09\u3002<\/p>\n
    CSS Paint API\u7684\u4f18\u52bf\u5728\u4e8e\uff1a\u5176\u4f5c\u4e3a\u4e00\u4e2aCSS\u5c5e\u6027\u503c\uff0c\u6e32\u67d3\u662f\u5b9e\u65f6\u7684<\/strong>\uff0c\u81ea\u52a8\u8ddf\u7740\u6d4f\u89c8\u5668\u91cd\u7ed8\u7684\uff0c\u56e0\u6b64\uff0c\u53ea\u8981\u6211\u4eec\u7684\u7ed8\u5236\u662f\u548cCSS\u53d8\u91cf\u76f8\u5173\u8054\u7684\uff0c\u6240\u6709\u7684\u6e32\u67d3\u6548\u679c\u90fd\u4f1a\u5b9e\u65f6\u5237\u65b0\u91cd\u7ed8\uff0c\u8fd9\u53ef\u5c31\u725b\u903c\u5927\u4e86\uff01<\/p>\n
    \u8fd8\u662f\u4e0a\u9762\u7684\u900f\u660e\u683c\u5b50\u4f8b\u5b50\uff0c\u683c\u5b50\u7684\u989c\u8272\u4ee5\u53ca\u683c\u5b50\u7684\u5c3a\u5bf8\uff0c\u6211\u4eec\u53ef\u4ee5\u5c06\u5176\u4f5c\u4e3aCSS\u53d8\u91cf<\/a>\u63d0\u53d6\u51fa\u6765\uff0c\u5982\u4e0b\uff1a<\/p>\n
    .box {\r\n    width: 180px; height: 180px;\r\n    --color1: #fff;\r\n    --color2: #eee;\r\n    --units: 8;<\/span>\r\n    background: paint(custom-grid);\r\n}<\/pre>\n
    \u8fd9\u4e9b\u5b9a\u4e49\u7684\u53d8\u91cf\u6211\u4eec\u53ef\u4ee5\u5728\u7ed8\u5236\u7684\u65f6\u5019\u83b7\u53d6\u5230\uff0c\u793a\u610f\u5982\u4e0b\uff1a<\/p>\n
    registerPaint('custom-grid', class {\r\n    \/\/ \u83b7\u53d63\u4e2a\u53d8\u91cf<\/span>\r\n    static get inputProperties() {\r\n        return [\r\n            '--color1',\r\n            '--color2',\r\n            '--units'\r\n        ]\r\n    }\r\n    paint(context, size, properties) {\r\n        \/\/ \u4e24\u4e2a\u683c\u5b50\u989c\u8272<\/span>\r\n        var color1 = properties.get('--color1').toString();\r\n        var color2 = properties.get('--color2').toString();\r\n        \/\/ \u683c\u5b50\u5c3a\u5bf8<\/span>\r\n        var units = Number(properties.get('--units'));\r\n        \/\/ \u7ed8\u5236\u4ee3\u7801\uff0c\u548c\u4e4b\u524d\u4e00\u6837...<\/span>\r\n    }\r\n});<\/pre>\n
    \u9759\u6001\u6548\u679c\u662f\u4e00\u6837\u7684\uff1a<\/p>\n
    \"\u900f\u660e\u683c\u5b50\u6548\u679cdemo\"<\/p>\n
    \u4f46\u662f\uff0c\u5982\u679c\u6211\u4eec\u4fee\u6539\u4e86CSS\u4ee3\u7801\u4e2d\u5b9a\u4e49\u7684\u53d8\u91cf\u503c\uff0c\u5219\uff0c\u6211\u4eec\u53ef\u4ee5\u770b\u5230Paint\u80cc\u666f\u56fe\u5b9e\u65f6\u53d8\u5316\u6548\u679c\uff08\u89c1\u4e0bGIF\uff09\uff1a<\/p>\n
    \"\u5b9e\u65f6\u6539\u53d8\u53d8\u91cf\u540e\u7684\u5c3a\u5bf8\u53d8\u5316\"<\/p>\n
    \u773c\u89c1\u4e3a\u5b9e\uff0c\u60a8\u53ef\u4ee5\u72e0\u72e0\u5730\u70b9\u51fb\u8fd9\u91cc\uff1aCSS\u53d8\u91cf\u5916\u52a0Paint API\u7ed8\u5236\u900f\u660e\u683c\u5b50demo<\/a><\/p>\n
    \u65e0\u9700\u989d\u5916\u7684\u5b9a\u65f6\u5668\uff0c\u771f\u5b9e\u65f6\u6e32\u67d3\uff0c\u63a7\u5236\u975e\u5e38\u65b9\u4fbf\u3002<\/p>\n
    \u914d\u5408CSS Properties & Values API\uff0c\u628a--units<\/code>\u7b49\u53d8\u91cf\u5168\u90e8\u6ce8\u518c\u4e3a\u5408\u6cd5\u7684CSS\u5c5e\u6027\uff0c\u5219\uff0c\u6211\u4eec\u5c31\u80fd\u4f7f\u7528transition<\/code>\u548canimation<\/code>\u5c5e\u6027\u7eafCSS\u63a7\u5236Paint\u80cc\u666f\u56fe\u7684\u8fd0\u52a8\u548c\u52a8\u753b\u4e86\uff0c\u6309\u94ae\u4e0a\u4e91\u6735\u6f02\u6f02\u7684\u6548\u679c\u5b8c\u5168\u4e0d\u5728\u8bdd\u4e0b\u3002<\/p>\n
    \u8fd9\u4e2a\u6848\u4f8b\u4ee5\u540e\u518d\u4ecb\u7ecd\u3002<\/p>\n
    \u56db\u3001Houdini\uff0c\u517c\u5bb9\u4e0e\u5176\u4ed6<\/h3>\n
    \u672c\u6587\u4ecb\u7ecd\u7684CSS Paint API\u662fCSS Houdini\u7684\u4e00\u90e8\u5206\uff0c\u6700\u540e\u63d0\u5230\u7684CSS Properties & Values API\u4e5f\u662f\uff0c\u662f\u76ee\u524dChrome\u5df2\u7ecf\u652f\u6301\u7684\u4e00\u90e8\u5206API\u3002CSS houdini\u53ef\u4ee5\u81ea\u5b9a\u4e49CSS\u5c5e\u6027\uff0c\u5e03\u5c40\u7b49\uff0c\u672a\u6765\u4e0d\u53ef\u9650\u91cf\u3002<\/p>\n
    \u7531\u4e8e\u517c\u5bb9\u6027\u7684\u95ee\u9898\uff0c\u5982\u679c\u60f3\u8981\u5728\u5b9e\u9645\u9879\u76ee\u4e2d\u4f7f\u7528CSS Paint API\uff0c\u8fd8\u9700\u8981\u505a\u517c\u5bb9\u5904\u7406\uff0c\u4f8b\u5982\uff1a<\/p>\n
    .box {\r\n    width: 180px; height: 180px;\r\n    background: url(data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8\/9hAAAAMElEQVQ4T2P8\/\/\/\/fwY84P379\/ikGRhHDRgWYfDu3Tu86UBQUBB\/Ohg1gIFx6IcBABlfVjmYTYi7AAAAAElFTkSuQmCC);\r\n    background: paint(transparent-grid, whatever);\r\n}<\/pre>\n
    CSS Paint API\u66f4\u9002\u7528\u4e8e\u52a8\u6001\u573a\u666f\uff0c\u9002\u5408\u5b9e\u73b0\u9700\u8981\u5b9e\u65f6\u7ed8\u5236\u6e32\u67d3\u7684\u9700\u6c42\uff1b\u5982\u679c\u662f\u7eaf\u9759\u6001\u5c55\u793a\uff0c\u76f4\u63a5\u5c31\u7528JS\u52a0Canvas\u5b9e\u73b0\u5f97\u4e86\uff0c\u6ca1\u5fc5\u8981\u4e3a\u4e86\u6280\u672f\u800c\u6280\u672f\u3002<\/p>\n
    CSS Houdini\u53ca\u5176\u76f8\u5173\u7684\u65b0\u6280\u672f\u53ef\u73a9\u7684\u4e1c\u897f\u5f88\u591a\uff0c\u4ee5\u540e\u6709\u673a\u4f1a\u518d\u591a\u591a\u4ecb\u7ecd\uff0c\u672c\u6587\u5c31\u5230\u8fd9\u91cc\uff0c\u611f\u8c22\u60a8\u7684\u9605\u8bfb\uff01<\/p>\n
    \u53c2\u8003\u6587\u6863<\/strong><\/p>\n