Drupal 7 override jquery js file in custom theme

{
    $jqKey = "my-new-jquery"; // a key for new jquery file entry
    $js[$jqKey] = $js['misc/jquery.js']; // copy the default jquery settings, so you don't have to re-type them.
    $js[$jqKey]['data'] = "https://code.jquery.com/jquery-2.1.0.min.js"; // the path for new jquery file.
    $js[$jqKey]['version'] = '2.1.0'; // your jquery version.

    unset($js['misc/jquery.js']); // delete drupal's default jquery file.
}

来自 http://stackoverflow.com/questions/22900307/drupal-7-override-jquery-js-file-in-custom-theme