The　cooperative　robust　resilient　output　regulation　problem　is　investigated　in　this　article　for　linear　uncertain　multiagent　systems　under　denial-of-service　(DoS)　attacks.　To　tackle　arbitrarily　large　parametric　uncertainties,　the　canonical　internal　model　is　attached　to　the　multiagent　system,　converting　the　cooperative　robust　resilient　output　regulation　problem　into　the　auxiliary　event-triggered　stabilization　problem　of　the　augmented　error　system.　Then,　employing　a　hybrid　sampling　mechanism　mixing　event-triggered　and　time-triggered　scenarios,　the　augmented　error　system　is　stabilized　by　a　novel　sampled　distributed　output　feedback　control　law.　Moreover,　rigorous　proof　shows　that　the　Zeno　behavior　shall　not　happen.　Finally,　the　proposed　control　scheme　is　applied　to　solve　the　geometric　formation　problem　for　a　platoon　of　vehicles　under　DoS　attacks.