上传后无法安装，不知什么原因。错误提示为：
数据库访问错误
CREATE TABLE welive_comment (
commentid int(30) NOT NULL auto_increment,
touserid int(30) NOT NULL default '0',
username
VARCHAR(64)
NOT NULL default '',
content text NOT NULL,
userip
VARCHAR(32)
NOT NULL default '',
created int(11) NOT NULL default '0',
PRIMARY KEY
(commentid),
KEY touserid (touserid),
KEY created (created)
) ENGINE=MyISAM
错误内容: You have an error in your SQL syntax.
Check the manual that corresponds to your MySQL server version for the right syntax to use near 'ENGINE=MyISAM' at line 11
错误代码: 1064
