从昨天早上开始，我一直在努力实现可能看起来像这样的东西：
.signature-stroke{
stroke-dasharray: 1700;
stroke-dashoffset: 1700;
stroke-width: 6;
animation: writing 2.2s linear forwards;
}
@keyframes writing {
0% {
stroke-dashoffset: 1700;
}
45% {
stroke-width: 5;
}
90% {
stroke-dashoffset: 0;
}
100% {
stroke-dashoffset: 0;
stroke-width: 15;
}
}<svg
xmlns="http://www.w3.org/2000/svg"
width="419px" height="259px"
viewBox="0 0 419 259"
>
<defs>
<clipPath id="clipmask">
<path
d="M397.37,76.381c-8.974-5.228-13.697-15.834-16.289-15.834
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c-18.53,23.604-43.023,53.441-45.148,53.441c-3.543,0,3.063-8.038-1.724-8.038s-34.692,24.231-34.692,24.231
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l-20.604,48.399c0,0-3.929,9.443,1.18,9.443c6.263,0,32.273-29.65,41.089-29.65c3.511,0-4.914,12.56-4.914,12.56
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C95.809,141.202,41.799,179.856,21.013,179.856z"/>
<path
d="M157.326,16.264c-3.229,0-7.774,4.546-7.774,7.775c0,3.229,2.618,5.847,5.848,5.847
c3.229,0,11.372-3.483,11.372-8.932C166.771,15.476,160.556,16.264,157.326,16.264z"/>
</clipPath>
</defs>
<g
class="stroke"
clip-path="url(#clipmask)"
stroke-linejoin="miter"
stroke-miterlimit="5"
>
<path
class="signature-stroke"
fill="none"
stroke="#B247B3"
d="M1.645,12.002c0,0,16.003-8.467,42.266-8.467
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s4.441-3.966,11.333-3.966s13.084,20.525,40.209,20.525"/>
<path
class="signature-dot"
fill="#B247B3"
d="M157.326,16.264c-3.229,0-7.774,4.546-7.774,7.775c0,3.229,2.618,5.847,5.848,5.847 c3.229,0,11.372-3.483,11.372-8.932C166.771,15.476,160.556,16.264,157.326,16.264z">
</path>
</g>
</svg>
所以我用Illustrator创建了一个svg代码，有些简单的说“嘿”。
.hey {
stroke-width: 6;
stroke: black;
stroke-dasharray: 10;
/* here you can see the dashes are wrong. there is no space between them. the dashes are around and not along the path! */
}
.hey2 {
stroke-width: 6;
stroke: black;
stroke-dasharray: 3900;
stroke-dashoffset: 3900;
animation: dash 15s linear forwards;
}
/* you can see the animation is wrong and the animation goes around the path... */
@keyframes dash {
to {
stroke-dashoffset: 0;
}
}<svg class="hey" version="1.1" id="Calque_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
viewBox="0 0 1280 1024" style="enable-background:new 0 0 1280 1024;" xml:space="preserve">
<g>
<g>
<path d="M149.4,259.7c33.9-20.7,65.8-44.7,95.1-71.5c23.7-21.7,54.6-49.6,47.6-85.3c-3-15.2-13.3-27.1-28.4-31.1
c-14.8-3.9-34.2-3.4-43.9,10.2c-4.6,6.5-6.9,14.4-8.7,22c-2.3,9.8-4,19.8-5.1,29.8c-2.4,20.7-2.5,41.7-1.7,62.5
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c0.4,1.7,2.8,1.2,2.9-0.4c6.1-76.6-15.3-154.2,1.3-230.2c1.7-7.9,3.6-16.2,8-23.1c5.4-8.6,13.9-11.9,23.8-12.3
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L149.4,259.7z"/>
</g>
</g>
</svg>
<svg class="hey2" version="1.1" id="Calque_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
viewBox="0 0 1280 1024" style="enable-background:new 0 0 1280 1024;" xml:space="preserve">
<g>
<g>
<path d="M149.4,259.7c33.9-20.7,65.8-44.7,95.1-71.5c23.7-21.7,54.6-49.6,47.6-85.3c-3-15.2-13.3-27.1-28.4-31.1
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c9.9-9.4,22.1-6.7,29.8,3.8c6.6,9,7.6,20.7,11.2,31c2.5,7.1,6.5,15.4,14.3,17.8c8.8,2.8,16.9-3.6,23-9.2c7.3-6.7,14-14.1,20-22
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L149.4,259.7z"/>
</g>
</g>
</svg>
根据对本教程https://css-tricks.com/svg-line-animation-works/的理解，我不得不在svg上添加一个笔划，该笔划将变为虚线。
这一步对我来说是一团糟，因为每次svg都不会正确破折号。如您所见，仍然有一条线可见。破折号在周围而不是沿着路径。结果，当我激活关键帧时，动画是一条围绕svg的线，这正在做出奇怪的事情-绝对不是我想要的。
这是我在这里的第一篇文章，我刚刚开始学习编码，因此，如果有任何不当之处，请原谅。
非常感谢您！
答案 0 :(得分：1)
这就是我所做的：
stroke-dasharray和stroke-dashoffset的值。为此，我使用了hey.getTotalLength() 我希望这是您所需要的。
.hey {
stroke-width: 6;
stroke: black;
}
#hey {
stroke-width: 6;
stroke: black;
stroke-dasharray: 1896.892333984375;
stroke-dashoffset: 1896.892333984375;
animation: dash 15s linear forwards;
}
/* you can see the animation is wrong and the animation goes around the path... */
@keyframes dash {
to {
stroke-dashoffset: 0;
}
}<svg class="hey" version="1.1" id="Calque_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
viewBox="0 0 1280 1024" style="enable-background:new 0 0 1280 1024;" xml:space="preserve">
<g>
<g>
<path id="hey"
fill="none"d="M149.4,259.7c33.9-20.7,65.8-44.7,95.1-71.5c23.7-21.7,54.6-49.6,47.6-85.3c-3-15.2-13.3-27.1-28.4-31.1
c-14.8-3.9-34.2-3.4-43.9,10.2c-4.6,6.5-6.9,14.4-8.7,22c-2.3,9.8-4,19.8-5.1,29.8c-2.4,20.7-2.5,41.7-1.7,62.5
c1.8,47.4,8.3,94.8,4.5,142.3c1-0.1,2-0.3,2.9-0.4c-4.6-21.4-2.3-44.1,6.5-64.2c4.1-9.5,9.7-19.4,17.2-26.6
c9.9-9.4,22.1-6.7,29.8,3.8c6.6,9,7.6,20.7,11.2,31c2.5,7.1,6.5,15.4,14.3,17.8c8.8,2.8,16.9-3.6,23-9.2c7.3-6.7,14-14.1,20-22
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c-0.5-1.6-2.9-1.3-2.9,0.4c-1.2,93.5-2.4,187.5-17,280.1c-2,12.8-4.3,25.5-6.8,38.1c-2,10.2-4.3,23.7-15.2,28.1
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"/>
</g>
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