The specific operation steps of posting recruitment information on WeChat are as follows:

1. Log in to WeChat and click the "Me" option in the lower right corner of the main interface.

2. Select the "Settings" option on the next page.

3. After entering the settings, select the "General" option in the settings.

4. After entering the next page, select the "Accessibility" option.

5. In the auxiliary function, find the function of "Public Assistant" and click.

6. Select the "Enable this function" button after opening.

7. Finally, select "Start Mass Sending" to publish the recruitment information.