//删除JS及CSS的版本查询字符串
function _remove_script_version ( $src ){
    $parts = explode( '?', $src );
    return $parts[0];
  }
add_filter( 'script_loader_src', '_remove_script_version', 15, 1 );
add_filter( 'style_loader_src', '_remove_script_version', 15, 1 );