当url有中文时，地址就会出现问题。显示时要将中文转换格式如下：
$bank_name = str_replace(array('+','/'),array('-','_',''),base64_encode($this->param['bank_name']));
$company_name = str_replace(array('+','/'),array('-','_',''),base64_encode($this->param['company_name']));
$bank_barnch = str_replace(array('+','/'),array('-','_',''),base64_encode($this->param['bank_barnch']));
$url_ly = "?company_name=".$company_name."&bank_name=".$bank_name."&bank_barnch=".$bank_barnch."&bank_no=".$this->param['bank_no'];