关于perl处理my数据库的一些内容，看到书也不太了解，还好有文档。还是文档好。

查看文档，在终端中输入：perldoc DBD::MysqL

  1 #!/usr/bin/perl  -w 
  2  use DBI;
  3 my $database="datebasename";
  4 my $hostname="localhost";
  5 my $port="3306";
  6 my $user="username";
  7 my $password="password";
  8 $dsn = "DBI:MysqL:database=$database;host=$hostname;port=$port";
  9 $dbh = DBI->connect($dsn,$user,$password);
 10 #创建一个表单位foo的数据表
 11 $dbh->do("CREATE TABLE foo (id INTEGER,name VARCHAR(20))");
 12 #在数据表中插入数据
 13 $dbh->do("INSERT INTO foo VALUES (1," . $dbh->quote("Tim") . ")");
 14 my $sth = $dbh->prepare("SELECT id,name FROM user");
 15 #execute()函数是用来执行已经prepare的查询语句
 16 $sth->execute();
 17 while (my $ref = $sth->fetchrow_hashref()) {
 18            print "Found a row: id = $ref->{'id'},name = $ref->{'name'}\n";
 19      }
 20  $sth->finish();
 21 #断开与数据库的连接                                                                                                      
 22  $dbh->disconnect();