If the controller is named in camel case, such as BlogTest
There are two ways to access this controller:
1.Convention.php configure 'url_convert' => false, then access strictly according to BlogTest
2. If 'url_convert' => true, then both blogtest and BlogTest are possible
For details, refer to the thinkphp url access chapter: https://www.kancloud.cn/manual/thinkphp5/118012