/*** 获取个数*/function getnum($str) {preg_match_all("/[0-9]{1}/",$str,$arrNum);preg_match_all("/[a-zA-Z]{1}/",$str,$arrAl);preg_match_all("/([\x{4e00}-\x{9fa5}]){1}/u",$str,$arrCh);$num1 = count($arrNu

N:全角 X:半角 9:半角英数 C:半角全角混在