ant-design-vue/components/button/demo/icon.vue

<template>
  <div>
    <a-button type="primary" shape="circle" icon="search" />
    <a-button type="primary" icon="search">Search</a-button>
    <a-button shape="circle" icon="search" />
    <a-button icon="search">Search</a-button>
    <br />
    <a-button shape="circle" icon="search" />
    <a-button icon="search">Search</a-button>
    <a-button type="dashed" shape="circle" icon="search" />
    <a-button type="dashed" icon="search">Search</a-button>
  </div>
</template>