First open burpsuite, click on Extender, click on BApp Store to find CO2 and choose to install it, a tick will be displayed in the Installed column to indicate that the installation is complete.
After installation, click CO2-->SQLMapper-->confige to select your sqlmap directory
Similarly, select python.exe in the python directory to complete the basic configuration
Use the shooting range to test it, open DVWA, open Firefox proxy, open BURP Proxy to capture packets
Right click on the data packet and select Extensions->CO2->send to sqlmapper, you can configure it yourself in Options as needed.
Click run to start running SQLMap
normal operation