我需要知道如何将SVG文件中的多个图标组合起来，现在我有三个图标，但不知为何我找不到背后的逻辑。
我读到，我需要删除最后一部分，并将其与下面的图标组合。
例子
从
<path d="m150.355469 322.332031c-30.046875 0-54.402344 24.355469-54.402344 54.402344 0 30.042969 24.355469 54.398437 54.402344 54.398437 30.042969 0 54.398437-24.355468 54.398437-54.398437-.03125-30.03125-24.367187-54.371094-54.398437-54.402344zm0 88.800781c-19 0-34.402344-15.402343-34.402344-34.398437 0-19 15.402344-34.402344 34.402344-34.402344 18.996093 0 34.398437 15.402344 34.398437 34.402344 0 18.996094-15.402344 34.398437-34.398437 34.398437zm0 0"/><path d="m446.855469 94.035156h-353.101563l-7.199218-40.300781c-4.4375-24.808594-23.882813-44.214844-48.699219-48.601563l-26.101563-4.597656c-5.441406-.96875-10.632812 2.660156-11.601562 8.097656-.964844 5.441407 2.660156 10.632813 8.101562 11.601563l26.199219 4.597656c16.53125 2.929688 29.472656 15.871094 32.402344 32.402344l35.398437 199.699219c4.179688 23.894531 24.941406 41.324218 49.199219 41.300781h210c22.0625.066406 41.546875-14.375 47.902344-35.5l47-155.800781c.871093-3.039063.320312-6.3125-1.5-8.898438-1.902344-2.503906-4.859375-3.980468-8-4zm-56.601563 162.796875c-3.773437 12.6875-15.464844 21.367188-28.699218 21.300781h-210c-14.566407.039063-27.035157-10.441406-29.5-24.800781l-24.699219-139.398437h336.097656zm0 0"/>
TO
<path d="m150.355469 322.332031c-30.046875 0-54.402344 24.355469-54.402344 54.402344 0 30.042969 24.355469 54.398437 54.402344 54.398437 30.042969 0 54.398437-24.355468 54.398437-54.398437-.03125-30.03125-24.367187-54.371094-54.398437-54.402344zm0 88.800781c-19 0-34.402344-15.402343-34.402344-34.398437 0-19 15.402344-34.402344 34.402344-34.402344 18.996093 0 34.398437 15.402344 34.398437 34.402344 0 18.996094-15.402344 34.398437-34.398437 34.398437 m446.855469 94.035156h-353.101563l-7.199218-40.300781c-4.4375-24.808594-23.882813-44.214844-48.699219-48.601563l-26.101563-4.597656c-5.441406-.96875-10.632812 2.660156-11.601562 8.097656-.964844 5.441407 2.660156 10.632813 8.101562 11.601563l26.199219 4.597656c16.53125 2.929688 29.472656 15.871094 32.402344 32.402344l35.398437 199.699219c4.179688 23.894531 24.941406 41.324218 49.199219 41.300781h210c22.0625.066406 41.546875-14.375 47.902344-35.5l47-155.800781c.871093-3.039063.320312-6.3125-1.5-8.898438-1.902344-2.503906-4.859375-3.980468-8-4zm-56.601563 162.796875c-3.773437 12.6875-15.464844 21.367188-28.699218 21.300781h-210c-14.566407.039063-27.035157-10.441406-29.5-24.800781l-24.699219-139.398437h336.097656zm0 0"/>
但是输出是空的，而且如果我只取两个路径中的一个路径，我将只看到这个路径。
有什么简单的解释吗？
对不起，我的英语不好，希望你能理解我的意思。
你可以把你的路径可视化，如果你把它们放在一个合适的位置，你就可以把它们可视化。<svg> 元素。它需要有一个 "合理的 "viewBox属性。对于你的例子，下面的工作。<svg viewBox="0 0 620 840">. 我还添加了两个矩形(<rect>)来显示你覆盖符号的范围。希望对你有所帮助。
注意: 将两个路径合并成一个路径是一个稍微复杂的任务。这可以用一个合适的SVG编辑器来完成，比如Inkscape（或者其他很多软件...）。
<svg viewBox="0 0 620 840">
<rect x="0" y="0" width="480" height="440" style="stroke:black;fill:none"/>
<path d="m150.355469 322.332031c-30.046875 0-54.402344 24.355469-54.402344 54.402344 0 30.042969 24.355469 54.398437 54.402344 54.398437 30.042969 0 54.398437-24.355468 54.398437-54.398437-.03125-30.03125-24.367187-54.371094-54.398437-54.402344zm0 88.800781c-19 0-34.402344-15.402343-34.402344-34.398437 0-19 15.402344-34.402344 34.402344-34.402344 18.996093 0 34.398437 15.402344 34.398437 34.402344 0 18.996094-15.402344 34.398437-34.398437 34.398437zm0 0"/><path d="m446.855469 94.035156h-353.101563l-7.199218-40.300781c-4.4375-24.808594-23.882813-44.214844-48.699219-48.601563l-26.101563-4.597656c-5.441406-.96875-10.632812 2.660156-11.601562 8.097656-.964844 5.441407 2.660156 10.632813 8.101562 11.601563l26.199219 4.597656c16.53125 2.929688 29.472656 15.871094 32.402344 32.402344l35.398437 199.699219c4.179688 23.894531 24.941406 41.324218 49.199219 41.300781h210c22.0625.066406 41.546875-14.375 47.902344-35.5l47-155.800781c.871093-3.039063.320312-6.3125-1.5-8.898438-1.902344-2.503906-4.859375-3.980468-8-4zm-56.601563 162.796875c-3.773437 12.6875-15.464844 21.367188-28.699218 21.300781h-210c-14.566407.039063-27.035157-10.441406-29.5-24.800781l-24.699219-139.398437h336.097656zm0 0"/>
<rect x="80" y="300" width="540" height="440" style="stroke:black;fill:none"/>
<g style="fill:none;stroke:red">
<path d="m150.355469 322.332031c-30.046875 0-54.402344 24.355469-54.402344 54.402344 0 30.042969 24.355469 54.398437 54.402344 54.398437 30.042969 0 54.398437-24.355468 54.398437-54.398437-.03125-30.03125-24.367187-54.371094-54.398437-54.402344zm0 88.800781c-19 0-34.402344-15.402343-34.402344-34.398437 0-19 15.402344-34.402344 34.402344-34.402344 18.996093 0 34.398437 15.402344 34.398437 34.402344 0 18.996094-15.402344 34.398437-34.398437 34.398437 m446.855469 94.035156h-353.101563l-7.199218-40.300781c-4.4375-24.808594-23.882813-44.214844-48.699219-48.601563l-26.101563-4.597656c-5.441406-.96875-10.632812 2.660156-11.601562 8.097656-.964844 5.441407 2.660156 10.632813 8.101562 11.601563l26.199219 4.597656c16.53125 2.929688 29.472656 15.871094 32.402344 32.402344l35.398437 199.699219c4.179688 23.894531 24.941406 41.324218 49.199219 41.300781h210c22.0625.066406 41.546875-14.375 47.902344-35.5l47-155.800781c.871093-3.039063.320312-6.3125-1.5-8.898438-1.902344-2.503906-4.859375-3.980468-8-4zm-56.601563 162.796875c-3.773437 12.6875-15.464844 21.367188-28.699218 21.300781h-210c-14.566407.039063-27.035157-10.441406-29.5-24.800781l-24.699219-139.398437h336.097656zm0 0"/>
</g>
</svg>我把你第二部分的两条路径用以下方法合并起来 Inkscape，把它通过在线SVG优化器进行优化。SVGOMG! (谢谢你的提示。Danny '365CSI' Engelman)，最后变成了这样。
<svg xmlns="http://www.w3.org/2000/svg"
width="400" viewBox="-1 0 515 390">
<path d="M54.4 2a54.4 54.4 0 106.2 108.4
c9.1 2.2 18.9 3.5 28.3 5.2
a40 40 0 0132.4 32.4l35.4 199.7a49.9 49.9 0 0049.2 41.3
h210c22 0 41.5-14.4 47.9-35.5l47-155.8
c.8-3 .3-6.3-1.5-8.9-2-2.5-4.9-4-8-4H148.2l-7.2-40.3
c-7-24.4-13.6-38.3-49.2-48.7A54.2 54.2 0 0054.4 2zm0 20
a34.4 34.4 0 110 68.8 34.4 34.4 0 010-68.8z
m97.4 182.7h336l-43.1 142.9a29.8 29.8 0 01-28.7 21.3H206
c-14.6 0-27-10.4-29.5-24.8z"
stroke="red" fill="gray"/>
</svg>