<g-button>默认按钮</g-button>
<g-button icon="settings">设置</g-button>
<g-button icon="thumbs-up">点赞</g-button>
<g-button icon="download" icon-position="right">下载</g-button>
<g-button :loading="true">登录中</g-button>

<g-button-group>
    <g-button icon="left" icon-position="left">上一页</g-button>
    <g-button icon="right" icon-position="right">下一页</g-button>
</g-button-group>