Let's make a folder we need for your project. We are going to use the ink! CLI.
cargo contract new myproj
This command creates a new folder named myproj
cd myproj
Now you could install the simplest ink! smart contract! When you are making your own smart contract, feel free to edit files, and make your own smart contract.
Off-chain test environment is provided by ink!. We can quickly test your codes.
cargo +nightly build
Then,
cargo +nightly test
You could see a successful test completion.
Any questions? Feel free to ask us.