$p = new show_page; ★ 声明一个show_page对象
$p -> file = "index.php?";★ 设置show_page对象的属性file为index.php?
$p -> pvar = "page";
$query = "Select id From gb";
$result = @mysql_query($query, $conn);
$p -> set($pagesize, mysql_num_rows($result));★ 调用show_page对象的set方法
$query = "Select * From gb Order By id Desc Limit " . $p->limit();
require "getmsg.php";
$p -> file = "index.php?";★ 设置show_page对象的属性file为index.php?
$p -> pvar = "page";
$query = "Select id From gb";
$result = @mysql_query($query, $conn);
$p -> set($pagesize, mysql_num_rows($result));★ 调用show_page对象的set方法
$query = "Select * From gb Order By id Desc Limit " . $p->limit();
require "getmsg.php";
$p -> file = "index.php?";★（尤其这个->号，不知道什么意思)
类中的属性赋值 属性public
$p -> set($pagesize, mysql_num_rows($result));★ 调用类方法
也就是给调用类中的函数,并且给该函数传2个参数-> 想当于JavaScript . 属性存取运算符看看PHP手册中的类部分, 叫法好想和我说的不台一样,我用JavaScript的术语!
javascript里面对象调用方法和属性是this.method(),这里便是$this->method();