复制代码 代码如下:function Cut_string($string, $start ,$sublen, $extstring=’…’, $code = ‘UTF-8’) {//Cut_string开始 if($code == ‘UTF-8’) { $pa = “/[\x01-\x7f]|[\xc2-\xdf][\x80-\xbf]|\xe0[\xa0-\xbf][\x80-\xbf]|[\xe1-\xef][\x80-\xbf][\x80-\xbf]|\xf0[\x90-\xbf][\x