To withdraw your bitcoin please log into your Coinfloor account and go to My Account ----> Withdraw. Select bitcoin from the list of currencies.
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.