如何在点击一个 svg 后将其切换到另一个 svg？

Answer 1

您可以将路径保存为字典，并将

svg

传递到

myFunction

中，并根据

innerHTML

返回的内容更新

classList.toggle

：

var lighting_mode_paths = {
  'moon': '<path d="M21.7519 15.0019C20.597 15.4839 19.3296 15.75 18 15.75C12.6152 15.75 8.25 11.3848 8.25 5.99999C8.25 4.67039 8.51614 3.40296 8.99806 2.24805C5.47566 3.71785 3 7.19481 3 11.25C3 16.6348 7.36522 21 12.75 21C16.8052 21 20.2821 18.5243 21.7519 15.0019Z" stroke="#000000" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"></path>',
  'sun': '<path d="M12 3V5.25M18.364 5.63604L16.773 7.22703M21 12H18.75M18.364 18.364L16.773 16.773M12 18.75V21M7.22703 16.773L5.63604 18.364M5.25 12H3M7.22703 7.22703L5.63604 5.63604M15.75 12C15.75 14.0711 14.0711 15.75 12 15.75C9.92893 15.75 8.25 14.0711 8.25 12C8.25 9.92893 9.92893 8.25 12 8.25C14.0711 8.25 15.75 9.92893 15.75 12Z" stroke="#000" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"></path>',
};

function myFunction(svg) {
  var element = document.body;
  
  if (element.classList.toggle('dark-mode')) {
    svg.innerHTML = lighting_mode_paths['moon'];
  } else {
    svg.innerHTML = lighting_mode_paths['sun'];
  }
}

.dark-mode {
  background: #333;
}

.dark-mode path {
  fill: #fff;
  stroke: #fff;
}

<svg onclick="myFunction(this)" width="24" height="24" viewBox="0 0 24 24" fill="#000" xmlns="http://www.w3.org/2000/svg">
    <path d="M12 3V5.25M18.364 5.63604L16.773 7.22703M21 12H18.75M18.364 18.364L16.773 16.773M12 18.75V21M7.22703 16.773L5.63604 18.364M5.25 12H3M7.22703 7.22703L5.63604 5.63604M15.75 12C15.75 14.0711 14.0711 15.75 12 15.75C9.92893 15.75 8.25 14.0711 8.25 12C8.25 9.92893 9.92893 8.25 12 8.25C14.0711 8.25 15.75 9.92893 15.75 12Z" stroke="#000" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round">
  </path>
</svg>

如果已将类添加到

element.classList.toggle

，

true

将返回

element

，如果已从

false

中删除类，则将返回

element

。