首先将get添加到查询变量数组：

function add_query_vars_wpa12572($vars) {
    $vars[] = \'get\'
    return $vars;
}

add_filter(\'query_vars\', \'add_query_vars_wp12572\');

function author_rewrite_rules_wpa12572( $wp_rewrite ) {
  $newrules = array();
  $new_rules[\'get_(\\d*)$\'] = \'index.php?get=$matches[1]\';
  $wp_rewrite->rules = $new_rules + $wp_rewrite->rules;
}
add_filter(\'generate_rewrite_rules\',\'author_rewrite_rules_wpa12572\');