svg 已经通过svgomg优化过代码；

比如

```

<svg xmlns="http://www.w3.org/2000/svg" width="200" height="200" class="icon" viewBox="0 0 1024 1024"><path fill="#3462AD" d="M597.333 768H768V546.133l-256-256-256 256V768h170.667V597.333h170.666V768zM896 554.667h-42.667v298.666H170.667V554.667H128l384-384 384 384z"/></svg>

```