smarty分配的变量为啥在模板上输出不了

/* 

//显示样式如下： 

//[1] 2 3 4 5 6 7 8 9 10 ...100 下页 尾页 

//首页 上页 1..12 13 14 15 [16] 17 18 19 20 ...100 下页 尾页 

//首页 上页 1..92 93 94 95 96 97 98 [99] 100 



//使用方法： 

//$currentPage = $_GET['page']?$_GET['page']:1; 

//$pagediv = new pagediv(500, 10, 11, $currentPage, 'test.php?page='); 

//$pagediv->show(); 



*/ 

class pagediv 

{ 

public $part1; 

public $part2; 

public $part3; 

public $part4; 

public $part5; 



/* 

对下面的分页显示进行分割: 

首页 上页 1..12 13 14 15 [16] 17 18 19 20 ...100 下页 尾页 

$part1 : 首页 上页 

$part2 : 1.. 

$part3 : 12 13 14 15 [16] 17 18 19 20 

$part4 : ...100 

$part5 : 下页 尾页 

*/ 



public $allPage; //总页数 

public $allRocords; //总记录数 

public $perPage; //每页记录数 

public $showPagesNo; //显示分页栏的总页码数 显示样式里共有11个 

public $currentPage; //当前页 

public $urlModel; //Url链接样式 



public $startHidden; //出现 1... 时的页数 开始隐藏中间页 

public $endHidden; //出现 ...100 时的页数 结束隐藏中间页 



public function __construct($allRocords, $perPage, $showPagesNo, $currentPage, $urlModel){ 

$this->allRocords = $allRocords; 

$this->perPage = $perPage; 

$this->showPagesNo = $showPagesNo; 

$this->currentPage = $currentPage; 

$this->urlModel = $urlModel; 

$this->allPage = $this->getAllPage(); 



$this->startHidden = $this->getInt(($this->showPagesNo)/2); //6 

$this->endHidden = $this->allPage - $this->startHidden; //94 

} 



public function getUrl($_index = ''){ 

$_current = $_index; 

if($_index == 'pre') $_current = $this->currentPage -1; 

if($_index == 'next') $_current = $this->currentPage+1; 

if($_index == '') $_current = $this->allPage;