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ÐÞ¸Ä /etc/my.cnf
[mysqld]
datadir=/var/lib/mysql
port=3300                    #Ð޸ijÉÄã×Ô¼ºÏëÒªµÄ¶Ë¿Ú
socket=/var/lib/mysql/mysql.sock
[mysql.server]
user=mysql
basedir=/var/lib
[safe_mysqld]
err-log=/var/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid
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port            = 3300
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$abc='I love u';
echo $abc //½á¹ûÊÇ:I love u
echo '$abc' //½á¹ûÊÇ:$abc
echo "$abc" //½á¹ûÊÇ:I love u
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create table t_dept(
id int(4) not null, name varchar(50) not null,
primary key(id))type=innodb;
create table t_emp (
id int(6) not null,
name char(255) not null,fk_id int(4) not null,
primary key(id),
foreign key (fk_id) references t_dept (id)) type=innodb; ......
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