在登录/注册表单上方添加一条信息

if ( ! function_exists( 'YOUR_PREFIX_login_message' ) ) {
    /**
     * 在“我的账户”页面，在登录/注册表单上方添加一条信息
     */
    function YOUR_PREFIX_login_message() {
        if ( get_option( 'woocommerce_enable_myaccount_registration' ) == 'yes' ) {
            ?>
            <div class="woocommerce-info">
            <p><?php _e( 'Returning customers login. New users register for next time so you can:', 'YOUR-TEXTDOMAIN' ); ?></p>
            <ul>
                <li><?php _e( 'View your order history', 'YOUR-TEXTDOMAIN' ); ?></li>
                <li><?php _e( 'Check on your orders', 'YOUR-TEXTDOMAIN' ); ?></li>
                <li><?php _e( 'Edit your addresses', 'YOUR-TEXTDOMAIN' ); ?></li>
                <li><?php _e( 'Change your password', 'YOUR-TEXTDOMAIN' ); ?></li>
            </ul>
            </div>
            <?php
        }
    }
    add_action( 'woocommerce_before_customer_login_form', 'YOUR_PREFIX_login_message' );
}