To withdraw your bitcoin please log into your Coinfloor account and go to My Account ----> Withdraw ----> bitcoin (BTC).
If this is your first time withdrawing you will need to register your bitcoin wallet address. Your bitcoin wallet address will begin with bc1 or the number 1 or 3 and may look like this: 31uEbMgunupShBVTewXjtqbBv5MndwfXhb.
Most wallets automatically generate the address for you. To find out more about bitcoin wallets go to https://bitcoin.org/en/choose-your-wallet
You should only withdraw bitcoin to a wallet that you control.