我用layer插件 大公司都用这个插件 兼容IE6

哥们感谢你的提醒，不晓得你修改的是哪个版本的，我现在的是v2.0.9，我看了baseHtml是OK的啊。

 /**
     * Generates an image tag.
     * @param array|string $src the image URL. This parameter will be processed by [[Url::to()]].
     * @param array $options the tag options in terms of name-value pairs. These will be rendered as
     * the attributes of the resulting tag. The values will be HTML-encoded using [[encode()]].
     * If a value is null, the corresponding attribute will not be rendered.
     * See [[renderTagAttributes()]] for details on how attributes are being rendered.
     * @return string the generated image tag
     */
    public static function img($src, $options = [])
    {
        $options['src'] = Url::to($src);
        if (!isset($options['alt'])) {
            $options['alt'] = '';
        }
        return static::tag('img', '', $options);
    }