'defaultRoute' => 'topic/default/index',
'components' => [
'urlManager' => [
'enablePrettyUrl' => true,
'showScriptName' => false,
'suffix' => '.html',
'rules' => [
'/node/<node:\w+>' => 'topic/default/index',
方法如上 在 main.php 里面修改
'defaultRoute' => 'topic/default/index',
和 rules 里面的 替换 '' => 'topic/default/index', '/node/<node:\w+>' => 'topic/default/index',