Woocommerce 商品详情页购物车按钮下添加自定义内容

function content_after_addtocart_button_func() {
// 输出内容
echo '<div  style="font-size:10px;"><em>(*Contact us for bulk purchase enquiry)</em></div>';
}
add_action( 'woocommerce_after_add_to_cart_button', 'content_after_addtocart_button_func' );