找到自己的mysql数据库的安装位置,如下
C:\Program Files\MySQL\MySQL Server 5.1，在它里面有个的my.ini文件，寻找如下行：
[mysqld]
# The TCP/IP Port the MySQL Server will listen on
port=3306
#Path to installation directory. All paths are usually resolved relative to this.
basedir="C:/Program Files/MySQL/MySQL Server 5.1/"
#Path to the database root
datadir="C:/ProgramData/MySQL/MySQL Server 5.1/Data/"
# The default character set that will be used when a new schema or table is