需要首先通過 php 腳本在 SVG 文件內部具有特殊（動態）的polygon組中獲取和修改。使用 DOMDocument() 和 DOMXPath 找不到此元素。請幫忙gidPHP:$svg = file_get_contents($svgPath);$doc = new DOMDocument();$doc->loadXML($svg);$doc->preserveWhiteSpace = false;$xpath = new DOMXPath($doc);$xpath->registerNamespace('svg','http://www.w3.org/2000/svg');**$curPolygon = $xpath -> query("//svg:g[@id='fl_1']/polygon[0]");**if ($curPolygon ) {  $curPolygon [0]->setAttribute('fill', '#ae8f72');}$svg = $doc->saveXML($doc);echo $svg;SVG：<svg>...<g id="Flats">    ...    <g id="fl_1">        <polygon fill="none" points="0,0 436.5,0 436.5,197.7 257,197.7 257,267.1 196.9,267.1 196.9,293.9 0,293.9"/>        <g> <rect x="209.9" y="84.8" fill="#AE8E72" width="56.3" height="22.1"/> </g>        <text transform="matrix(1 0 0 1 214.1091 101.5043)"><tspan x="0" y="0">4</tspan></text>        <text transform="matrix(1 0 0 1 235.5047 101.5042)">132,0</text>    </g>    <g id="fl_2">        <polygon fill="none" points="404.5,388.7 404.5,390 251.7,390 251.7,192.3 436.5,192.3 436.5,388.7"/>        <g> <rect x="327.7" y="278.4" fill="#AE8E72" width="56.3" height="22.1"/> </g>        <text transform="matrix(1 0 0 1 331.8962 295.0608)"><tspan x="0" y="0">1</tspan></text>        <text transform="matrix(1 0 0 1 354.9925 295.0607)">40,7</text>    </g>    ...</g>...</svg>結果var_dump($q)是object(DOMNodeList)#6 (1) { ["length"]=> int(0) }