晋太元中,武陵人捕鱼为业。缘溪行,忘路之远近。忽逢桃花林,夹岸数百步,中无杂树,芳草鲜美,落英缤纷。渔人甚异之,复前行,欲穷其林。 林尽水源,便得一山,山有小口,仿佛若有光。便舍船,从口入。初极狭,才通人。复行数十步,豁然开朗。土地平旷,屋舍俨然,有良田、美池、桑竹之属。阡陌交通,鸡犬相闻。其中往来种作,男女衣着,悉如外人。黄发垂髫,并怡然自乐。 见渔人,乃大惊,问所从来。具答之。便要还家,设酒杀鸡作食。村中闻有此人,咸来问讯。自云先世避秦时乱,率妻子邑人来此绝境,不复出焉,遂与外人间隔。问今是何世,乃不知有汉,无论魏晋。此人一一为具言所闻,皆叹惋。余人各复延至其家,皆出酒食。停数日,辞去。此中人语云:“不足为外人道也。”(间隔 一作:隔绝) 既出,得其船,便扶向路,处处志之。及郡下,诣太守,说如此。太守即遣人随其往,寻向所志,遂迷,不复得路。 南阳刘子骥,高尚士也,闻之,欣然规往。未果,寻病终。后遂无问津者。
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<?php
/**
* WPSEO plugin file.
*
* @package WPSEO\Admin
*/
/**
* Represents the utils for the admin.
*/
class WPSEO_Admin_Utils {
/**
* Gets the install URL for the passed plugin slug.
*
* @param string $slug The slug to create an install link for.
*
* @return string The install URL. Empty string if the current user doesn't have the proper capabilities.
*/
public static function get_install_url( $slug ) {
if ( ! current_user_can( 'install_plugins' ) ) {
return '';
}
return wp_nonce_url(
self_admin_url( 'update.php?action=install-plugin&plugin=' . dirname( $slug ) ),
'install-plugin_' . dirname( $slug )
);
}
/**
* Gets the activation URL for the passed plugin slug.
*
* @param string $slug The slug to create an activation link for.
*
* @return string The activation URL. Empty string if the current user doesn't have the proper capabilities.
*/
public static function get_activation_url( $slug ) {
if ( ! current_user_can( 'install_plugins' ) ) {
return '';
}
return wp_nonce_url(
self_admin_url( 'plugins.php?action=activate&plugin_status=all&paged=1&s&plugin=' . $slug ),
'activate-plugin_' . $slug
);
}
/**
* Creates a link if the passed plugin is deemend a directly-installable plugin.
*
* @param array $plugin The plugin to create the link for.
*
* @return string The link to the plugin install. Returns the title if the plugin is deemed a Premium product.
*/
public static function get_install_link( $plugin ) {
$install_url = self::get_install_url( $plugin['slug'] );
if ( $install_url === '' || ( isset( $plugin['premium'] ) && $plugin['premium'] === true ) ) {
return $plugin['title'];
}
return sprintf(
'<a href="%s">%s</a>',
$install_url,
$plugin['title']
);
}
/**
* Gets a visually hidden accessible message for links that open in a new browser tab.
*
* @return string The visually hidden accessible message.
*/
public static function get_new_tab_message() {
return sprintf(
'<span class="screen-reader-text">%s</span>',
/* translators: Hidden accessibility text. */
esc_html__( '(Opens in a new browser tab)', 'wordpress-seo' )
);
}
}