评论验证码插件有很多，Fancy Captcha 可以说非常独特和有趣。随机让你拖动一个指定的图标进入小圆圈，这样的验证码既能起到阻挡垃圾评论的作用，还能不引起访客的厌烦。
可直接在后台搜索下载，或者访问插件主页，插件自带简体中文语言包。
来源：
https://www.wpdaxue.com/fancy-captcha.html
WordPress 有趣的评论验证码插件：Fancy Captcha
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