PDO Connection faild.(可能空间不支持pdo_sqlite，详细错误信息：)exception 'PDOException' with message 'could not find driver' in F:\freehost\shichonghe\web\gbook\app\class\app.php:150
Stack trace:
#0 F:\freehost\shichonghe\web\gbook\app\class\app.php(150): PDO->__construct('sqlite:F:/freeh...')
#1 F:\freehost\shichonghe\web\gbook\app\class\app.php(8): DbHelpClass->__construct()
#2 F:\freehost\shichonghe\web\gbook\app\class\app.php(5): get_config()
#3 F:\freehost\shichonghe\web\gbook\app\class\ajax.php(2): require_once('F:\freehost\shi...')
#4 {main}