- delete the count and id of state (!DONE!)
- check all the unwrap, if there's no need to return a result, just return the variable itself
- add the logic of edge adding (!DONE!)
- all the state should refer to the one in state model, no clone (!DONE! The refer state is just represented as string)
- add the logic of weight updating
- passive sending should consider the target selection?
签名，hash，加密 变异，生成策略添加 序列化
收发包接口