[field:pubdate function='strftime("%w",@me)'/]

[field:pubdate runphp='yes']
                                $aa=strftime('%w',@me);
                                if($aa == 0) @me = "星期日";
                                else if($aa == 1) @me = "星期一";
                                else if($aa == 2) @me = "星期二";
                                else if($aa == 3) @me = "星期三";
                                else if($aa == 4) @me = "星期四";
                                else if($aa == 5) @me = "星期五";
                                else if($aa == 6) @me = "星期六";
                                else @me = $aa;
                            [/field:pubdate]