• 验证码组件支持短信和图片
• 图标是用js实现的，图片还支持后端生成的URL

@inherits BaseComponent

<KCaptcha Option="@Option" />

@code {
    private CaptchaOption Option;
}

class Test : BaseComponent
{
    protected override void BuildRender(RenderTreeBuilder builder)
    {
        builder.Component<KCaptcha>()
               .Set(c => c.Option, option) //option为CaptchaOption对象
               .Build();
    }
}