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\u521b\u5efa\u7b80\u5355\u6e38\u620f\uff0c\u63d0\u4f9b\u5b9e\u65f6\u7528\u6237\u4ea4\u4e92\u7684\u5e73\u53f0\u3002\u540c\u6837\uff0c\u6570\u636e\u53ef\u89c6\u5316\u652f\u6301\u52a8\u6001\u5c55\u793a\u590d\u6742\u6570\u636e\u96c6\uff0c\u63d0\u5347\u7406\u89e3\u548c\u53c2\u4e0e\u5ea6\u3002\u4ea4\u4e92\u5f0f\u56fe\u5f62\u63d0\u4f9b\u4f20\u7edf\u9759\u6001\u56fe\u50cf\u65e0\u6cd5\u5b9e\u73b0\u7684\u7528\u6237\u4ea4\u4e92\u5c42\u6b21\uff0c\u800c\u56fe\u50cf\u7f16\u8f91\u5de5\u5177\u5219\u5141\u8bb8\u7528\u6237\u5728\u7f51\u9875\u4e0a\u4fee\u6539\u548c\u5b9a\u5236\u56fe\u50cf\u3002<\/p>\n<p>\u5728\u7ee7\u7eed\u4e4b\u524d\uff0c\u8bf7\u8bb0\u4f4f\uff0c\u5c3d\u7ba1 HTML Canvas \u4e3a Web \u5f00\u53d1\u5f15\u5165\u4e86\u5168\u65b0\u7684\u53ef\u80fd\u6027\uff0c\u4f46\u5b83\u5728\u8d1f\u8f7d\u6d4b\u8bd5\u65b9\u9762\u4e5f\u5e26\u6765\u4e86\u72ec\u7279\u6311\u6218\u3002\u63a5\u4e0b\u6765\u7684\u7ae0\u8282\u5c06\u9488\u5bf9\u8fd9\u4e9b\u6311\u6218\uff0c\u89e3\u91ca\u5982\u4f55\u6709\u6548\u5730\u4e3a\u5927\u91cf\u4f7f\u7528 HTML Canvas \u7684\u5e94\u7528\u8fdb\u884c\u8d1f\u8f7d\u6d4b\u8bd5\u3002\u8fd9\u6709\u52a9\u4e8e\u786e\u4fdd HTML Canvas \u5e94\u7528\u80fd\u591f\u5904\u7406\u9ad8\u6d41\u91cf\u3001\u4fdd\u6301\u6d41\u7545\u6027\u80fd\u5e76\u63d0\u4f9b\u59cb\u7ec8\u5982\u4e00\u7684\u4f18\u8d28\u7528\u6237\u4f53\u9a8c\u3002<\/p>\n<p>&nbsp;<\/p>\n<h2 id='html-canvas-\u5e94\u7528\u8d1f\u8f7d\u6d4b\u8bd5\u7684\u91cd\u8981\u6027'  id=\"boomdevs_3\">HTML Canvas \u5e94\u7528\u8d1f\u8f7d\u6d4b\u8bd5\u7684\u91cd\u8981\u6027<\/h2>\n<p>\u76ee\u524d\uff0c\u6570\u5b57\u7528\u6237\u4f53\u9a8c\u81f3\u5173\u91cd\u8981\uff0cHTML Canvas \u5e94\u7528\u56e0\u5176\u80fd\u591f\u52a8\u6001\u521b\u5efa\u548c\u4fee\u6539\u7f51\u9875\u56fe\u5f62\uff0c\u8fdb\u800c\u4e3a\u7528\u6237\u63d0\u4f9b\u4e92\u52a8\u4e14\u5f15\u4eba\u5165\u80dc\u7684\u5185\u5bb9\uff0c\u5904\u4e8e\u524d\u6cbf\u5730\u4f4d\u3002\u4f46\u968f\u4e4b\u800c\u6765\u7684\u662f\u66f4\u9ad8\u7684\u4ea4\u4e92\u6027\uff0c\u4e5f\u589e\u52a0\u4e86\u8d1f\u8f7d\u6d4b\u8bd5\u7684\u590d\u6742\u6027\u3002<\/p>\n<p><strong>HTML Canvas \u5e94\u7528\u8d1f\u8f7d\u6d4b\u8bd5\u7684\u9700\u6c42<\/strong><\/p>\n<p>\u5bf9 HTML Canvas \u5e94\u7528\u8fdb\u884c\u8d1f\u8f7d\u6d4b\u8bd5\u81f3\u5173\u91cd\u8981\uff0c\u56e0\u4e3a\u5b83\u5e2e\u52a9\u8bc4\u4f30\u5e94\u7528\u5728\u4e0d\u540c\u8d1f\u8f7d\u6761\u4ef6\u4e0b\u7684\u6027\u80fd\u3002\u76ee\u6807\u662f\u6a21\u62df\u5927\u91cf\u5e76\u53d1\u7528\u6237\u8bbf\u95ee\u5e94\u7528\uff0c\u4ee5\u4e86\u89e3\u5176\u5728\u4e0d\u540c\u8d1f\u8f7d\u6c34\u5e73\u4e0b\u7684\u8868\u73b0\u3002\u8fd9\u7c7b\u6d4b\u8bd5\u6781\u5176\u91cd\u8981\uff0c\u56e0\u4e3a\u5b83\u53ef\u4ee5\u8bc6\u522b\u53ef\u80fd\u5f71\u54cd\u7528\u6237\u4f53\u9a8c\u7684\u6027\u80fd\u95ee\u9898\uff0c\u6bd4\u5982\u54cd\u5e94\u7f13\u6162\u3001\u56fe\u5f62\u5143\u7d20\u6e32\u67d3\u5ef6\u8fdf\uff0c\u751a\u81f3\u5728\u6781\u7aef\u60c5\u51b5\u4e0b\u7cfb\u7edf\u5d29\u6e83\u7b49\u3002<\/p>\n<p>\u8c08\u53ca HTML Canvas \u5e94\u7528\u7684\u8d1f\u8f7d\u6d4b\u8bd5\uff0c\u5173\u6ce8\u70b9\u4e0d\u4ec5\u9650\u4e8e\u4f20\u7edf\u8d1f\u8f7d\u6d4b\u8bd5\u8303\u56f4\u5185\u7684\u670d\u52a1\u5668\u7aef\u6027\u80fd\u3002\u5ba2\u6237\u7aef\u7684\u6e32\u67d3\u3001\u54cd\u5e94\u80fd\u529b\u548c\u53ef\u6269\u5c55\u6027\u540c\u6837\u5173\u952e\u3002\u8fd9\u5305\u62ec HTML Canvas \u5143\u7d20\u5728\u4e0d\u540c\u8bbe\u5907\u548c\u6d4f\u89c8\u5668\u4e0a\u7684\u6e32\u67d3\u6548\u7387\uff0c\u5e94\u7528\u5bf9\u7528\u6237\u4ea4\u4e92\u7684\u54cd\u5e94\u901f\u5ea6\uff0c\u4ee5\u53ca\u5f53\u8d1f\u8f7d\u589e\u52a0\u65f6\u7684\u6269\u5c55\u80fd\u529b\u3002<\/p>\n<p><strong>\u4f18\u5316\u6027\u80fd\u4e0e\u7528\u6237\u4f53\u9a8c\u7684\u8d1f\u8f7d\u6d4b\u8bd5<\/strong><\/p>\n<p>\u8d1f\u8f7d\u6d4b\u8bd5\u6709\u52a9\u4e8e\u53d1\u73b0\u670d\u52a1\u5668\u7aef\u5904\u7406\u548c\u5ba2\u6237\u7aef\u6e32\u67d3\u7684\u74f6\u9888\uff0c\u5c24\u5176\u5bf9\u7531\u4e8e\u56fe\u5f62\u64cd\u4f5c\u8d44\u6e90\u5bc6\u96c6\u7684 HTML Canvas \u5e94\u7528\u800c\u8a00\u5c24\u4e3a\u91cd\u8981\u3002\u6027\u80fd\u95ee\u9898\u4f1a\u6781\u5927\u5f71\u54cd\u7528\u6237\u4f53\u9a8c\uff0c\u5bfc\u81f4\u7528\u6237\u632b\u8d25\u611f\u751a\u81f3\u653e\u5f03\u5e94\u7528\u3002<\/p>\n<p>\u57fa\u4e8e\u8fd9\u4e9b\u56e0\u7d20\uff0cHTML Canvas \u5e94\u7528\u7684\u8d1f\u8f7d\u6d4b\u8bd5\u4e0d\u4ec5\u662f\u9526\u4e0a\u6dfb\u82b1\uff0c\u800c\u662f\u5fc5\u4e0d\u53ef\u5c11\u7684\u3002\u5b83\u786e\u4fdd\u5e94\u7528\u80fd\u5904\u7406\u9ad8\u6d41\u91cf\uff0c\u7ef4\u6301\u53ef\u63a5\u53d7\u7684\u54cd\u5e94\u65f6\u95f4\uff0c\u5e76\u5728\u9ad8\u8d1f\u8f7d\u4e0b\u4ecd\u63d0\u4f9b\u6d41\u7545\u3001\u5438\u5f15\u4eba\u7684\u7528\u6237\u4f53\u9a8c\u3002\u901a\u8fc7\u5728\u6d4b\u8bd5\u9636\u6bb5\u8bc6\u522b\u548c\u4fee\u6b63\u6f5c\u5728\u7684\u6027\u80fd\u95ee\u9898\uff0c\u6211\u4eec\u53ef\u4ee5\u63d0\u5347\u5e94\u7528\u7684\u53ef\u9760\u6027\u3001\u53ef\u6269\u5c55\u6027\u53ca\u5e02\u573a\u6210\u529f\u7387\u3002<\/p>\n<p>\u603b\u4e4b\uff0cHTML Canvas \u5e94\u7528\u7684\u8d1f\u8f7d\u6d4b\u8bd5\u662f\u4e00\u4e2a\u590d\u6742\u800c\u5173\u952e\u7684\u8fc7\u7a0b\uff0c\u8bc4\u4f30\u5e94\u7528\u5728\u538b\u529b\u4e0b\u7684\u8868\u73b0\u80fd\u529b\u3002\u5b83\u5728\u786e\u4fdd\u6700\u7ec8\u7528\u6237\u83b7\u5f97\u65e0\u7f1d\u548c\u6109\u5feb\u4f53\u9a8c\u4e2d\u53d1\u6325\u5173\u952e\u4f5c\u7528\uff0c\u6bd5\u7adf\u90a3\u662f\u4efb\u4f55\u5e94\u7528\u7684\u6700\u7ec8\u76ee\u6807\u3002<\/p>\n<p>&nbsp;<\/p>\n<h2 id='\u4f7f\u7528-html-canvas-\u7684\u8d1f\u8f7d\u6d4b\u8bd5\u793a\u4f8b'  id=\"boomdevs_4\">\u4f7f\u7528 HTML Canvas \u7684\u8d1f\u8f7d\u6d4b\u8bd5\u793a\u4f8b<\/h2>\n<p><strong>\u521b\u5efa\u4e00\u4e2a\u7b80\u5355\u7684 HTML Canvas \u5e94\u7528<\/strong><\/p>\n<p>\u4e3a\u4e86\u66f4\u597d\u5730\u7406\u89e3 HTML Canvas \u7684\u8fd0\u4f5c\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e00\u4e2a\u5b9e\u9645\u793a\u4f8b\u6765\u89c2\u5bdf\u5305\u542b Canvas \u5143\u7d20\u548c\u76f8\u5e94 JavaScript \u7684\u57fa\u672c HTML \u6587\u6863\u3002\u4e3a\u4e86\u63d0\u9ad8\u53ef\u8bfb\u6027\u548c\u7406\u89e3\u5ea6\uff0c\u4e0b\u9762\u9010\u6b65\u8bb2\u89e3\u793a\u4f8b\u4ee3\u7801\u4e2d\u7684\u529f\u80fd\u548c\u7528\u9014\uff08\u793a\u4f8b 1\uff09\u3002<\/p>\n<p><a href=\"https:\/\/www.loadview-testing.com\/wp-content\/uploads\/html-canvas-element.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-64535\" src=\"https:\/\/www.loadview-testing.com\/wp-content\/uploads\/html-canvas-element.png\" alt=\"html canvas element\" width=\"1810\" height=\"1425\" srcset=\"https:\/\/www.loadview-testing.com\/wp-content\/uploads\/html-canvas-element.png 1810w, https:\/\/www.loadview-testing.com\/wp-content\/uploads\/html-canvas-element-1280x1008.png 1280w, https:\/\/www.loadview-testing.com\/wp-content\/uploads\/html-canvas-element-980x772.png 980w, https:\/\/www.loadview-testing.com\/wp-content\/uploads\/html-canvas-element-480x378.png 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) and (max-width: 980px) 980px, (min-width: 981px) and (max-width: 1280px) 1280px, (min-width: 1281px) 1810px, 100vw\" \/><\/a><\/p>\n<p style=\"text-align: center\"><em>\u793a\u4f8b 1. HTML Canvas \u5143\u7d20\u3002<\/em><\/p>\n<p><strong>HTML Canvas \u529f\u80fd\u6f14\u793a<\/strong><\/p>\n<p>HTML \u7ed3\u6784\u4ece\u58f0\u660e <strong>&lt; !DOCTYPE html &gt;<\/strong> \u5143\u7d20\u5f00\u59cb\uff0c\u6307\u5b9a\u6587\u6863\u7c7b\u578b\u4e3a HTML\u3002\u63a5\u7740\u5305\u542b\u4e00\u4e2a <strong>&lt; head &gt;<\/strong> \u90e8\u5206\uff0c\u5185\u542b\u7f51\u9875\u6807\u9898\u3002\u7136\u540e\u8fdb\u5165 HTML \u6587\u6863\u7684 <strong>&lt; body &gt;<\/strong> \u90e8\u5206\uff0c\u8fd9\u91cc\u5305\u542b\u4e86\u6211\u4eec\u7684 Canvas \u5143\u7d20\u3002<\/p>\n<p><strong>&lt; canvas &gt;<\/strong> \u6807\u7b7e\u5373\u5b9a\u4e49\u4e86\u6211\u4eec\u7684 HTML Canvas\u3002\u5728\u793a\u4f8b\u4e2d\uff0c\u753b\u5e03\u5143\u7d20\u88ab\u8d4b\u4e88\u4e86 ID <strong>&#8220;myCanvas&#8221;<\/strong>\uff0c\u5e76\u8bbe\u5b9a\u4e86\u7279\u5b9a\u5c3a\u5bf8\uff1a\u5bbd\u5ea6\u4e3a 200 \u50cf\u7d20\uff0c\u9ad8\u5ea6\u4e3a 100 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\/>\u63a5\u4e0b\u6765\u7684\u51e0\u884c\u4ee3\u7801\u8bbe\u7f6e\u586b\u5145\u989c\u8272\u5e76\u5728\u753b\u5e03\u4e0a\u7ed8\u5236\u77e9\u5f62\u3002<strong>ctx.fillStyle = &#8220;blue&#8221;<\/strong> \u547d\u4ee4\u6307\u793a\u7a0b\u5e8f\u5c06\u540e\u7eed\u56fe\u5f62\u586b\u5145\u4e3a<strong>\u84dd\u8272<\/strong>\u3002\u800c <strong>ctx.fillRect(10,10,100,50)<\/strong> \u547d\u4ee4\u5219\u5728\u753b\u5e03\u4e0a\u7ed8\u5236\u4e00\u4e2a\u77e9\u5f62\u3002\u53c2\u6570\u4ee3\u8868\u77e9\u5f62\u8d77\u70b9\u7684 x \u548c y \u5750\u6807\uff0810,10\uff09\uff0c\u968f\u540e\u662f\u5c3a\u5bf8\uff1a\u5bbd 100 \u50cf\u7d20\uff0c\u9ad8 50 \u50cf\u7d20\u3002<br \/>\u6253\u5f00\u6b64 HTML \u6587\u4ef6\u65f6\uff0c\u6d4f\u89c8\u5668\u4e2d\u4f1a\u770b\u5230\u4e00\u4e2a\u84dd\u8272\u77e9\u5f62\u88ab\u7ed8\u5236\u5728\u753b\u5e03\u4e0a\u3002\u6b64\u793a\u4f8b\u5c55\u793a\u4e86\u5982\u4f55\u4f7f\u7528 HTML Canvas \u548c JavaScript 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\u5185\u5bb9\u7684\u901f\u5ea6\u975e\u5e38\u91cd\u8981\u3002\u6d4b\u8bd5\u4e2d\u5e94\u5305\u542b\u4e0d\u540c\u7f51\u7edc\u901f\u5ea6\u72b6\u51b5\uff0c\u5982\u6162\u901f\u8fde\u63a5\u6216\u9ad8\u5ef6\u8fdf\uff0c\u8fd9\u6709\u52a9\u4e8e\u8bc4\u4f30\u5e94\u7528\u5728\u975e\u7406\u60f3\u6761\u4ef6\u4e0b\u7684\u8868\u73b0\u3002\u5f53\u7136\uff0c\u670d\u52a1\u5668\u6027\u80fd\u4f9d\u7136\u5173\u952e\uff0c\u5c24\u5176\u5f53\u5e94\u7528\u4f9d\u8d56\u670d\u52a1\u5668\u6570\u636e\u65f6\u3002\u6211\u4eec\u5fc5\u987b\u786e\u4fdd\u670d\u52a1\u5668\u80fd\u5e94\u5bf9\u5927\u91cf\u7528\u6237\u540c\u65f6\u8bf7\u6c42\u4fe1\u606f\uff0c\u5e76\u8fc5\u901f\u4f20\u9001\u6570\u636e\u3002<\/p>\n<h2 id='\u5e94\u5bf9-html-canvas-\u5e94\u7528\u8d1f\u8f7d\u6d4b\u8bd5\u7684\u72ec\u7279\u65b9\u9762'  id=\"boomdevs_6\">\u5e94\u5bf9 HTML Canvas \u5e94\u7528\u8d1f\u8f7d\u6d4b\u8bd5\u7684\u72ec\u7279\u65b9\u9762<\/h2>\n<p>\u5982\u679c\u60a8\u7684 Canvas \u5e94\u7528\u6d89\u53ca\u5b9e\u65f6\u591a\u4eba\u6e38\u620f\u6216\u534f\u4f5c\u5de5\u5177\uff0c\u4fdd\u6301\u6240\u6709\u5185\u5bb9\u540c\u6b65\u5c24\u4e3a\u91cd\u8981\u3002\u8d1f\u8f7d\u6d4b\u8bd5\u5e94\u68c0\u9a8c\u5927\u91cf\u73a9\u5bb6\u540c\u65f6\u4ea4\u4e92\u65f6\u901a\u4fe1\u6e20\u9053\uff08\u5982 WebSockets\uff09\u7684\u6027\u80fd\u3002Canvas \u5e94\u7528\u540c\u65f6\u6d88\u8017\u7528\u6237\u7535\u8111\u548c\u670d\u52a1\u5668\u5927\u91cf\u8d44\u6e90\uff0c\u56e0\u6b64\u6d4b\u8bd5\u5e94\u5173\u6ce8\u5e94\u7528\u7684\u5185\u5b58\u548c\u5904\u7406\u80fd\u529b\u4f7f\u7528\u7387\u3002\u6211\u4eec\u9700\u8981\u53d1\u73b0\u4efb\u4f55\u5185\u5b58\u6cc4\u6f0f\u6216\u56e0\u8d44\u6e90\u9700\u6c42\u8fc7\u9ad8\u5bfc\u81f4\u7684\u6027\u80fd\u4e0b\u964d\u95ee\u9898\u3002\u4e0d\u540c\u6d4f\u89c8\u5668\u5bf9 Canvas \u7684\u5904\u7406\u7565\u6709\u5dee\u5f02\uff0c\u6d4b\u8bd5\u4e5f\u5e94\u786e\u4fdd\u5e94\u7528\u5728\u6240\u6709\u4e3b\u6d41\u6d4f\u89c8\u5668\u95f4\u987a\u7545\u8fd0\u884c\u3002\u6700\u540e\uff0cCanvas \u7684\u6838\u5fc3\u662f\u521b\u5efa\u6d41\u7545\u3001\u54cd\u5e94\u8fc5\u901f\u7684\u56fe\u5f62\u3002\u8d1f\u8f7d\u6d4b\u8bd5\u5e2e\u52a9\u4fdd\u8bc1\u5373\u4f7f\u4f17\u591a\u7528\u6237\u4ea4\u4e92\u65f6\uff0c\u5e94\u7528\u4f9d\u7136\u4e0d\u53d8\u5f97\u8fdf\u7f13\u6216\u65e0\u54cd\u5e94\u3002\u7b80\u800c\u8a00\u4e4b\uff0c\u6d4b\u8bd5 Canvas \u5e94\u7528\u9700\u8981\u66f4\u5e7f\u6cdb\u7684\u65b9\u6cd5\u3002\u6211\u4eec\u4e0d\u4ec5\u5173\u6ce8\u670d\u52a1\u5668\uff0c\u8fd8\u9700\u5bc6\u5207\u5173\u6ce8\u5e94\u7528\u5728\u7528\u6237\u7aef\u7684\u8868\u73b0\u3001\u8d44\u6e90\u7ba1\u7406\u53ca\u8de8\u6d4f\u89c8\u5668\u517c\u5bb9\u6027\u3002\u901a\u8fc7\u8fd9\u6837\u505a\uff0c\u6211\u4eec\u80fd\u786e\u4fdd\u60a8\u7684 Canvas 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type=&#8221;1_3&#8243; _builder_version=&#8221;4.24.2&#8243; custom_padding=&#8221;|||&#8221; sticky_position=&#8221;top&#8221; sticky_limit_bottom=&#8221;row&#8221; sticky_position_tablet=&#8221;none&#8221; sticky_position_phone=&#8221;none&#8221; sticky_position_last_edited=&#8221;on|desktop&#8221; global_colors_info=&#8221;{}&#8221; custom_padding__hover=&#8221;|||&#8221;][et_pb_text _builder_version=&#8221;4.27.6&#8243; _module_preset=&#8221;default&#8221; hover_enabled=&#8221;0&#8243; global_colors_info=&#8221;{}&#8221; sticky_enabled=&#8221;0&#8243;]\n        \n            \n            <div class=\"fit_content\">\n                <div class=\"bd_toc_container\" data-fixedWidth=\"\">\n                    <div class=\"bd_toc_wrapper\" data-wrapperPadding=\"90px\">\n                        <div class=\"bd_toc_wrapper_item\">\n                            <div class=\"bd_toc_header active\" data-headerPadding=\"2px\">\n                                <div class=\"bd_toc_header_title\">\n                                    In this article                                <\/div>\n                                <div class=\"bd_toc_switcher_hide_show_icon\">\n                                    <span class=\"bd_toc_arrow\"><\/span>                                <\/div>\n                            <\/div>\n                            <div class=\"bd_toc_content list-type-none\">\n                                <div class=\"bd_toc_content_list \">\n                                    <div class='bd_toc_content_list_item'><ul>\n  <li class=\"first\">\n    <a href=\"#html-canvas-\u53ca\u5176\u529f\u80fd\u7b80\u4ecb\">HTML Canvas \u53ca\u5176\u529f\u80fd\u7b80\u4ecb<\/a>\n  <\/li>\n  <li>\n    <a href=\"#html-canvas-\u5e94\u7528\u8d1f\u8f7d\u6d4b\u8bd5\u7684\u91cd\u8981\u6027\">HTML Canvas \u5e94\u7528\u8d1f\u8f7d\u6d4b\u8bd5\u7684\u91cd\u8981\u6027<\/a>\n  <\/li>\n  <li>\n    <a 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