Mysql安装（免安装版）
1、down load mysql-5.5.28-win32.zip
2、unzip it to a path such as d:/mysq/mysql-5.5.28-win32
3、copy the file my-huge.ini and rename it to my.ini
4、添加如下内容到my.ini的mysqld字段
    basedir=D:\mysql\mysql-5.5.28-win32
    datadir=D:\mysql\mysql-5.5.28-win32\data
    character-set-server=utf8
5、添加入戏内容到client字段
   default-character-set=utf8
6、以administrator的身份启动命令行cmd，cd到mysql的解压路径的bin文件夹，运行如下命令mysqld -install   此时已经安装了mysql服务。如出现Install/Remove of the Service Denied!提示说明你没用administrator权限。如出现Service successfully installed.说明安装成功
7、运行net start mysql启动mysql服务