public function trimall($str){//删除空格
$qian=array(" "," ","\t","\n","\r");
$hou=array("","","","","");
return str_replace($qian,$hou,$str);
$qian=array(" "," ","\t","\n","\r");
$hou=array("","","","","");
return str_replace($qian,$hou,$str);
}