enum Status{ Vacant, Occupied } Status currentStatus; event Occupy(address _occupant, uint _value);
enum Status{ Vacant, Occupied }
Status currentStatus;
event Occupy(address _occupant, uint _value);
您可以在此处阅读 Solidity 文档,并在文档中对其进行了解释:枚举:https : //docs.soliditylang.org/en/v0.8.10/types.html#enums发出:https : //docs.soliditylang.org/en/v0.8.10/contracts.html#events活动:https : //docs.soliditylang.org/en/v0.8.10/contracts.html#events我建议您在尝试阅读或编写 Solidity 代码之前阅读并理解整个文档。