$dsn = "localhost";
$dbname = "superelesystem";
$user = "root";
$password = "admin";
try {
$db = new PDO('mysql:host='.$dsn.';dbname='.$dbname, $user, $password);
//echo "数据库连接成功
";
} catch (PDOException $e) {
print "数据库连接失败，提示错误内容: " . $e->getMessage() . "
";
exit;
//die();
}
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