Resource Sharing of Smart City Based on Blockchain

Code 2

before manual optimization of specified structure.

Struct Dealing {

    adress userAddress;

    Uint256 date;

    Uint64 dealingNo;

    Uint64 publishingNo;

    Address publisherAddress;

    Uint64 price;

    State state;

    String newTime;

   }

Enum State {Created, Pending, Completed, Stopped}