Fair Lottery
引入VRFCoordinatorV2Interface接口，调用requestRandomWords方法
继承VRFConsumerBaseV2，重写fulfillRandomWords方法
实现checkUpkeep和performUpkeep,
This is a func that the chainLink Automation nodes call to see if it's time to perform an upkeep
引入HelperConfig fork不同链的NetworkConfig,然后实现DeployRaffle中run方法部署Raffle
引入Interaction脚本在后端programmatically create&fund Subscription && Add Consumer (mock Link合约 使用了solmate中ERC20合约 )
引入vm cheatcode类监听和获取事件
fuzz test
hoax cheatcode模拟环境
makefile for fork test forge command
lottery-foundry-master.zip （12个子文件） 
lottery-foundry-master lib chainlink-brownie-contracts solmate forge-std foundry-devops .github workflows 
test.yml 586B Makefile 985B src Raffle.sol 5KB foundry.toml 282B .gitmodules 458B test unit RaffleTest.t.sol 6KB mocks LinkTokens.sol 2KB .gitignore 155B script HelperConfig.s.sol 2KB Interactions.s.sol 4KB DeployRaffle.s.sol 2KB README.md 629B资源评论
