{$smarty} variable can be used to refer to loaded config variables. {$smarty.config.foo} is a synonyn for {#foo#}. See the section on config_load for an example.
{$smarty}变量 可以访问已经加载的config变量.
例如 {$smarty.config.foo}就可以表示 {#foo#}.可以查看config_load 部分的例子.