README                  		Ŀ¼ṹ˵ļ
index.php               		֮
languages/              		԰
templates/              		ģ	
packages/				Ŀ¼
packages/v2.1.0/                 	v2.0.5v2.1.0
packages/v2.1.0/changelog        	ļݽṹ޸ʷ
packages/v2.1.0/structure.sql    	ݽṹļ
packages/v2.1.0/data_zh_cn.sql   	ļ֮İ
packages/v2.1.0/data_zh_tw.sql   	ļ֮İ
.
.
.


ע
һÿֻ֮һ汾ŵ


Ҫǰ׺滻ԼȡΪ˾ȷƥ䣬
ݿⰲװļʱSQL䣺
CREATE TABLE
DROP TABLE
ALTER TABLE
UPDATE
REPLACE INTO
INSERT INTO



ÿ汾࣬ṩĽӿУ


(1) update_database_optionally()
ڴ˺Уûضݿв˳ԺӦԡ
ҪǿǵЩSQLļֱSQL䲻еԵʡ

(2) update_files()
ڴ˺Уûɶϵͳļв

ԣ
(1) $sql_files 
ڴĳSQLļŵλãڵ·
һ˵ʽ£
var $sql_files = array(
		    'structure' => 'structure.sql',
		    'data' => array(
					    'zh_cn' => 'data_zh_cn.sql',
					    'zh_tw' => 'data_zh_tw.sql'
		    )
);
dataʱʽ£
var $sql_files = array(
		    'structure' => 'structure.sql',
		    'data' => data.sql);

ȻûκһԪأΪգ
var $sql_files = array('structure' => 'structure.sql');
var $sql_files = array('data' => 'data.sql');
var $sql_files = array();

(2) $auto_match
ĳǷܻĲѯ