Answers:
您可以创建一个自定义表单模板(基于原始模板),然后可以通过编程方式加载reCaptcha块,如下所示:
<?php 
    echo $block->getLayout()
        ->createBlock('MSP\ReCaptcha\Block\Frontend\ReCaptcha',
            'msp-recaptcha',
            ['data' => 
                [
                    'jsLayout' => 
                    [
                        'components' => 
                        [
                            'msp-recaptcha' => 
                            [
                                'component' => 'MSP_ReCaptcha/js/reCaptcha',
                                'zone' => 'contact'
                            ]
                        ]
                    ]
                ]
            ]
        )
        ->setTemplate('MSP_ReCaptcha::msp_recaptcha.phtml')
        ->toHtml();
    ?>