I found that when i set "sm_cvar l4d_infected_limit 8" before server start.
After I check the value of z_max_player_zombies,I get 4 not 8.
But if I set "sm_cvar l4d_survivor_limit 8",the value return is 8.
So did I need to set "sm_cvar z_max_player_zombies 8" or not?