{"id":26051,"date":"2024-11-24T16:45:25","date_gmt":"2024-11-24T08:45:25","guid":{"rendered":"https:\/\/fwq.ai\/blog\/26051\/"},"modified":"2024-11-24T16:45:25","modified_gmt":"2024-11-24T08:45:25","slug":"%e5%a6%82%e4%bd%95%e7%94%a8%e5%b0%8f%e7%a8%8b%e5%ba%8f%e5%ae%9e%e7%8e%b0%e4%b8%8d%e8%a7%84%e5%88%99svg%e8%bf%9b%e5%ba%a6%e6%9d%a1%e7%9a%84%e5%8a%a8%e6%80%81%e8%b0%83%e6%95%b4%ef%bc%9f-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/26051\/","title":{"rendered":"\u5982\u4f55\u7528\u5c0f\u7a0b\u5e8f\u5b9e\u73b0\u4e0d\u89c4\u5219SVG\u8fdb\u5ea6\u6761\u7684\u52a8\u6001\u8c03\u6574\uff1f"},"content":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/001\/246\/273\/173078247959808.jpg\" class=\"aligncenter\" title=\"\u5982\u4f55\u7528\u5c0f\u7a0b\u5e8f\u5b9e\u73b0\u4e0d\u89c4\u5219SVG\u8fdb\u5ea6\u6761\u7684\u52a8\u6001\u8c03\u6574\uff1f\u63d2\u56fe\" alt=\"\u5982\u4f55\u7528\u5c0f\u7a0b\u5e8f\u5b9e\u73b0\u4e0d\u89c4\u5219SVG\u8fdb\u5ea6\u6761\u7684\u52a8\u6001\u8c03\u6574\uff1f\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u5236\u4f5c\u4e0d\u89c4\u5219\u8fdb\u5ea6\u6761<\/strong><\/p>\n<p><strong>\u95ee\u9898\u63cf\u8ff0\uff1a<\/strong><\/p>\n<ul>\n<li>\n<p>\u7ed9\u5b9a\u4e00\u4e2a\u6c34\u5854\u7684svg\u56fe\u50cf\uff0c\u9700\u8981\u5b9e\u73b0\u5982\u4e0b\u6548\u679c\uff1a<\/p>\n<ul>\n<li>\u6c34\u9762\u6839\u636e\u8fdb\u5ea6\u4e0a\u5347\u6216\u4e0b\u964d<\/li>\n<li>\u8fdb\u5ea6\u4f4e\u4e8e20%\u65f6\u663e\u793a\u7ea2\u8272\uff0c\u5176\u4f59\u663e\u793a\u7eff\u8272<\/li>\n<li>\u5c3a\u5bf8\u6839\u636e\u7236\u5e03\u5c40\u5927\u5c0f\u52a8\u6001\u8c03\u6574<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p><strong>\u601d\u8def\uff1a<\/strong><\/p>\n<p><strong>\u65b9\u6848 1\uff1a\u5207\u56fe\u6cd5<\/strong><\/p>\n<p>\u5c06\u6c34\u5854\u56fe\u50cf\u6839\u636e\u8fdb\u5ea6\u5207\u6210 10 \u5f20\u56fe\u7247\uff0c\u7136\u540e\u6839\u636e\u8fdb\u5ea6\u52a8\u6001\u663e\u793a\u3002<\/p>\n<p><strong>\u4f18\u70b9\uff1a<\/strong> \u7b80\u5355\u76f4\u89c2\u3002<\/p>\n<p><strong>\u7f3a\u70b9\uff1a<\/strong><\/p>\n<ul>\n<li>\u589e\u52a0\u5305\u4f53\u79ef\u3002<\/li>\n<li>\u5bf9\u4e8e\u590d\u6742\u7684\u56fe\u50cf\uff0c\u5207\u56fe\u53ef\u80fd\u6bd4\u8f83\u7c97\u7cd9\u3002<\/li>\n<\/ul>\n<p><strong>\u65b9\u6848 2\uff1a\u8499\u7248\u6cd5<\/strong><\/p>\n<p>\u4f7f\u7528\u4e24\u5f20svg\u56fe\u50cf\uff0c\u5c06\u4e0a\u9762\u7684\u6c34\u5854\u7528clip-path\u6839\u636e\u8fdb\u5ea6\u5207\u9664\u3002<\/p>\n<p><strong>\u4f18\u70b9\uff1a<\/strong><\/p>\n<ul>\n<li>\u53ef\u4ee5\u5b9e\u73b0\u7cbe\u786e\u7684\u8fdb\u5ea6\u63a7\u5236\u3002<\/li>\n<li>\u65e0\u9700\u5207\u56fe\uff0c\u5bf9\u5305\u4f53\u79ef\u6ca1\u6709\u5f71\u54cd\u3002<\/li>\n<\/ul>\n<p><strong>\u7f3a\u70b9\uff1a<\/strong><\/p>\n<ul>\n<li>svg\u7684path\u662f\u56fa\u5b9a\u7684\uff0c\u65e0\u6cd5\u5b9e\u73b0\u52a8\u6001\u5c3a\u5bf8\u8c03\u6574\u3002<\/li>\n<\/ul>\n<p><strong>\u89e3\u51b3\u601d\u8def\uff1a<\/strong><\/p>\n<p>\u5c0f\u7a0b\u5e8f\u4e0d\u652f\u6301\u76f4\u63a5\u64cd\u4f5csvg\u7684path\u8def\u5f84\uff0c\u4f46\u53ef\u4ee5\u8bfb\u53d6svg\u6587\u4ef6\uff0c\u67e5\u627e\u66ff\u6362\u9ad8\u5ea6\u548c\u989c\u8272\u90e8\u4f4d\u7684\u503c\uff0c\u518d\u8f6c\u4e3a base64 \u52a0\u8f7d\u5230\u5c0f\u7a0b\u5e8f\u4e2d\u3002<\/p>\n<p><strong>\u4ee3\u7801\u5b9e\u73b0\uff1a<\/strong><\/p>\n<pre>\/\/ \u8bfb\u53d6svg\u6587\u4ef6\nconst fs = require('fs');\nconst svg = fs.readFileSync('water_tower.svg', 'utf-8');\n\n\/\/ \u83b7\u53d6\u8fdb\u5ea6\nconst progress = 50;\n\n\/\/ \u67e5\u627e\u66ff\u6362\u9ad8\u5ea6\nconst heightRegex = \/height=\"([0-9]+)\"\/;\nconst newHeight = progress * 104 \/ 100;\nconst heightMatch = svg.match(heightRegex);\nif (heightMatch) {\n  svg = svg.replace(heightRegex, `height=\"${newHeight}\"`);\n}\n\n\/\/ \u67e5\u627e\u66ff\u6362\u989c\u8272\nconst colorRegex = \/fill=\"#([0-9a-f]+)\"\/;\nconst colorMatch = svg.match(colorRegex);\nlet color;\nif (colorMatch) {\n  if (progress &lt; 20) {\n    color = '#FF0000';\n  } else {\n    color = '#06CB60';\n  }\n  svg = svg.replace(colorRegex, `fill=\"${color}\"`);\n}\n\n\/\/ \u8f6c\u6362base64\nconst base64 = Buffer.from(svg).toString('base64');\n\n\/\/ \u52a0\u8f7d\u5230\u5c0f\u7a0b\u5e8f\u4e2d\nwx.createSelectorQuery().select('#my-svg').fields({\n  properties: ['src'],\n  computedStyle: [],\n  context: this\n}).exec((res) =&gt; {\n  this.setData({\n    'my-svg-src': `data:image\/svg+xml;base64,${base64}`\n  })\n});<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p><strong>\u6548\u679c\uff1a<\/strong><\/p>\n<p>\u6c34\u5854\u6c34\u9762\u4f1a\u6839\u636e\u8fdb\u5ea6\u52a8\u6001\u8c03\u6574\u9ad8\u5ea6\u548c\u989c\u8272\uff0c\u6574\u4f53\u5c3a\u5bf8\u4e5f\u4f1a\u968f\u7740\u7236\u5e03\u5c40\u5927\u5c0f\u53d8\u5316\u800c\u8c03\u6574\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662f\u5982\u4f55\u7528\u5c0f\u7a0b\u5e8f\u5b9e\u73b0\u4e0d\u89c4\u5219SVG\u8fdb\u5ea6\u6761\u7684\u52a8\u6001\u8c03\u6574\uff1f\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5982\u4f55\u5236\u4f5c\u4e0d\u89c4\u5219\u8fdb\u5ea6\u6761 \u95ee\u9898\u63cf\u8ff0\uff1a \u7ed9\u5b9a\u4e00\u4e2a\u6c34\u5854\u7684svg\u56fe\u50cf\uff0c\u9700\u8981\u5b9e\u73b0\u5982\u4e0b\u6548\u679c\uff1a \u6c34\u9762\u6839\u636e\u8fdb\u5ea6\u4e0a\u5347\u6216\u4e0b\u964d \u8fdb\u5ea6\u4f4e\u4e8e20%\u65f6\u663e\u793a\u7ea2\u8272\uff0c\u5176\u4f59\u663e\u793a\u7eff\u8272 \u5c3a\u5bf8\u6839\u636e\u7236\u5e03\u5c40\u5927\u5c0f\u52a8\u6001\u8c03\u6574 \u601d\u8def\uff1a \u65b9\u6848 1\uff1a\u5207\u56fe\u6cd5 \u5c06\u6c34\u5854\u56fe\u50cf\u6839\u636e\u8fdb\u5ea6\u5207\u6210 10 \u5f20\u56fe\u7247\uff0c\u7136\u540e\u6839\u636e\u8fdb\u5ea6\u52a8\u6001\u663e\u793a\u3002 \u4f18\u70b9\uff1a \u7b80\u5355\u76f4\u89c2\u3002 \u7f3a\u70b9\uff1a \u589e\u52a0\u5305\u4f53\u79ef\u3002 \u5bf9\u4e8e\u590d\u6742\u7684\u56fe\u50cf\uff0c\u5207\u56fe\u53ef\u80fd\u6bd4\u8f83\u7c97\u7cd9\u3002 \u65b9\u6848 2\uff1a\u8499\u7248\u6cd5 \u4f7f\u7528\u4e24\u5f20svg\u56fe\u50cf\uff0c\u5c06\u4e0a\u9762\u7684\u6c34\u5854\u7528clip-path\u6839\u636e\u8fdb\u5ea6\u5207\u9664\u3002 \u4f18\u70b9\uff1a \u53ef\u4ee5\u5b9e\u73b0\u7cbe\u786e\u7684\u8fdb\u5ea6\u63a7\u5236\u3002 \u65e0\u9700\u5207\u56fe\uff0c\u5bf9\u5305\u4f53\u79ef\u6ca1\u6709\u5f71\u54cd\u3002 \u7f3a\u70b9\uff1a svg\u7684path\u662f\u56fa\u5b9a\u7684\uff0c\u65e0\u6cd5\u5b9e\u73b0\u52a8\u6001\u5c3a\u5bf8\u8c03\u6574\u3002 \u89e3\u51b3\u601d\u8def\uff1a \u5c0f\u7a0b\u5e8f\u4e0d\u652f\u6301\u76f4\u63a5\u64cd\u4f5csvg\u7684path\u8def\u5f84\uff0c\u4f46\u53ef\u4ee5\u8bfb\u53d6svg\u6587\u4ef6\uff0c\u67e5\u627e\u66ff\u6362\u9ad8\u5ea6\u548c\u989c\u8272\u90e8\u4f4d\u7684\u503c\uff0c\u518d\u8f6c\u4e3a base64 \u52a0\u8f7d\u5230\u5c0f\u7a0b\u5e8f\u4e2d\u3002 \u4ee3\u7801\u5b9e\u73b0\uff1a \/\/ \u8bfb\u53d6svg\u6587\u4ef6 const fs = require(&#8216;fs&#8217;); 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