How do I spawn more enemys on my waves

Hallo everyone just want to ask how do i spawn more enemies on my waves at the moment i can spawn on wave 1 1 enemy which is fine but on wave 2 i want to spawn 2 enemies on wave 3 i want 3 enemies and so on and so on....?

I don't what your game is like but,

Try creating a variable that starts a 1 and perhaps write a function that creates the number of enemies equal to the variable. Then each time a wave is created add 1 to the variable and call the function to create the number of enemies. That's the basic idea...