在里面functions.php 在子主题中，插入以下代码：

if(is_admin()) {
    function wpse_version_check() {
        global $wp_version;
        echo \'<div>Current version of WordPress is <strong>\' . $wp_version . \'</strong></div>\';
    }     
    
    function wpse_add_dashboard_widgets() {
        wp_add_dashboard_widget(
            \'wp_version\',
            \'WP Version\',
            \'wpse_version_check\'
        );  
    }
    add_action(\'wp_dashboard_setup\', \'wpse_add_dashboard_widgets\');
}