smarty初接触

$smarty = new Smarty;
$smarty->setTemplateDir("./templates/");    #设置新的模板目录，
$smarty->setCompileDir("./templates_c/");   #设置新的编译目录
$smarty->setCacheDir("./cache/");  #设置新的缓存目录
$smarty->caching = true;    #设置缓存开启
$smarty->cache_lifetime = 300;    #设置缓存有效时间
$smarty->left_delimiter = "<{";   #左分界符
$smarty->right_delimiter = "}>";
$smarty->assign('test', 123);