drupal-①模块安装

url地址：

http://ftp.drupal.org/files/projects/back_to_top-7.x-1.4.tar.gz

http://ftp.drupal.org/files/projects/admin_menu-7.x-3.0-rc4.tar.gz 

http://ftp.drupal.org/files/projects/module_filter-7.x-2.0-alpha2.tar.gz

 http://ftp.drupal.org/files/projects/smtp-7.x-1.0.tar.gz