按照Google的说明，我在index.html文件中添加了适当的脚本：
Paste this snippet before the closing </head> tag on your HTML template:
<script src='https://www.google.com/recaptcha/api.js'></script>
Paste this snippet at the end of the <form> where you want the reCAPTCHA widget to appear:
<div class="g-recaptcha" data-sitekey="MY_KEY"></div>
The reCAPTCHA documentation site describes more details and advanced configurations.
虽然没有capatcha。它只是空白。是否安装reCaptcha与网站相同？是否有任何步骤如何将reCaptacha添加到Ionic中，因为我找不到任何东西？