关于Link属性 reactjs

Question

我在Link里面添加class没反应，我看它封装的组件activeClassName是string，不知为啥就是起不到作用

<Link to={{pathname:"/printPage"}} activeClassName="dddfff" target="_blank">打印</Link>

...
propTypes: {
    to: oneOfType([string, object, func]),
    query: object,
    hash: string,
    state: object,
    activeStyle: object,
    activeClassName: string,
    onlyActiveOnIndex: bool.isRequired,
    onClick: func,
    target: string
  },

Answer 1

<div className={styles.test}>
   <Link to='/'>打印</Link>
</div>

css

.test {
  a {
    color: black;
  }

  a:active {
    color: red;
  }
}