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{:captcha_src()}➕After doing this, the page cannot be refreshed. What should I do? ? ?
It turns out that you need to use Composer to install the think-captcha extension package
composer require topthink/think-captcha 1.*
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
It turns out that you need to use Composer to install the think-captcha extension package
composer require topthink/think-captcha 1.*