How to reference static file paths in CodeIgniter

There are several ways to introduce external files. here we will list two methods for reference only. I haven't used CI for a long time. I will get familiar with them. if there are any problems, please refer to several methods to introduce external files, here are two types for reference only. I haven't used CI for a long time. I'll get familiar with them. please be sure to find out what's missing.

1. set the BASE_URL of CI as follows:
Go to the application \ config. php file and set base_url in the config. php file:
$ Config ['base _ url'] = http://www.laotouwang.com/XX; // the root directory of your website
After the settings are complete, go to the controller.
$ This-> load-> helper ('URL '),
Then you can introduce it to the specific page of The VIEW layer:

Then you can introduce it to the specific page of The VIEW layer: