AI技术 - 智能体在区块链中的应用实践

# 区块链智能体示例 import json import hashlib import time from typing import Dict, List, Any from dataclasses import dataclass from enum import Enum class TransactionType(Enum): TRANSFER = "transfer" CONTRACT_CALL = "contract_call" STAKE = "stake" UNSTAKE = "unstake" VOTE = "vote" @dataclass class Transaction: from_address: str to_address: str amount: float transaction_type: TransactionType data: Dict[str, Any] timestamp: float signature: str = "" class BlockchainAgent: def __init__(self, agent_id: str, private_key: str, blockchain_network: str): self.agent_id = agent_id self.private_key = private_key self.blockchain_network = blockchain_network self.balance = 1000.0 # 初始余额 self.staked_amount = 0.0 self.voting_power = 0 self.transaction_history = [] self.contract_interactions = {} # 智能体策略 self.trading_strategy = None self.governance_strategy = None self.risk_management = None def create_transaction(self, to_address: str, amount: float, transaction_type: TransactionType, data: Dict = None) -> Transaction: """创建交易""" if data is None: data = {} transaction = Transaction( from_address=self.agent_id, to_address=to_address, amount=amount, transaction_type=transaction_type, data=data, timestamp=time.time() ) # 签名交易 transaction.signature = self.sign_transaction(transaction) return transaction # 使用示例 if __name__ == "__main__": agent = BlockchainAgent( "agent_001", "private_key_123", "Ethereum" ) print("区块链智能体初始化完成！") # self.contract_interactions: self.contract_interactions[contract_address] = [] self.contract_interactions[contract_address].append({ 'method': method, 'params': params, 'timestamp': transaction.timestamp }) return True return False def stake_tokens(self, amount: float) -> bool: """质押代币""" if self.balance < amount: return False transaction = self.create_transaction( to_address="staking_contract", amount=amount, transaction_type=TransactionType.STAKE ) if self.execute_transaction(transaction): self.balance -= amount self.staked_amount += amount self.voting_power += amount return True return False def unstake_tokens(self, amount: float) -> bool: """解质押代币""" if self.staked_amount < amount: return False transaction = self.create_transaction( to_address="staking_contract", amount=amount, transaction_type=TransactionType.UNSTAKE ) if self.execute_transaction(transaction): self.staked_amount -= amount self.voting_power -= amount self.balance += amount return True return False def vote_on_proposal(self, proposal_id: str, vote: bool) -> bool: """投票""" if self.voting_power <= 0: return False transaction = self.create_transaction( to_address="governance_contract", amount=0, transaction_type=TransactionType.VOTE, data={ 'proposal_id': proposal_id, 'vote': vote } ) return self.execute_transaction(transaction) class DeFiAgent(BlockchainAgent): def __init__(self, agent_id: str, private_key: str, blockchain_network: str): super().__init__(agent_id, private_key, blockchain_network) self.liquidity_positions = {} self.lending_positions = {} self.trading_pairs = {} def provide_liquidity(self, token_a: str, token_b: str, amount_a: float, amount_b: float) -> bool: """提供流动性""" # 检查余额 if self.balance < # amount_a + amount_b: return False # 与流动性合约交互 success = self.interact_with_contract( # contract_address="liquidity_contract", method="addLiquidity", params={ 'tokenA': token_a, 'tokenB': token_b, 'amountA': amount_a, 'amountB': amount_b } ) if success: pair_key = f"{token_a}_{token_b}" self.liquidity_positions[pair_key] = { 'amountA': amount_a, 'amountB': amount_b, 'timestamp': time.time() } self.balance -= (amount_a + amount_b) return success def remove_liquidity(self, token_a: str, token_b: str, liquidity_amount: float) -> bool: """移除流动性""" pair_key = f"{token_a}_{token_b}" if pair_key not in self.liquidity_positions: return False success = self.interact_with_contract( contract_address="liquidity_contract", method="removeLiquidity", params={ 'tokenA': token_a, 'tokenB': token_b, 'liquidity': liquidity_amount } ) if success: del self.liquidity_positions[pair_key] return success def swap_tokens(self, token_in: str, token_out: str, amount_in: float) -> bool: """代币交换""" if self.balance < amount_in: return False success = self.interact_with_contract( contract_address="swap_contract", method="swap", params={ 'tokenIn': token_in, 'tokenOut': token_out, 'amountIn': amount_in } ) return success def lend_tokens(self, token: str, amount: float, interest_rate: float) -> bool: """借贷代币""" if self.balance < amount: return False success = self.interact_with_contract( contract_address="lending_contract", method="lend", params={ 'token': token, 'amount': amount, 'interestRate': interest_rate } ) if success: self.lending_positions[token] = { 'amount': amount, 'interestRate': interest_rate, 'timestamp': time.time() } self.balance -= amount return success class DAOAgent(BlockchainAgent): def __init__(self, agent_id: str, private_key: str, blockchain_network: str): super().__init__(agent_id, private_key, blockchain_network) self.proposals = {} self.votes = {} self.treasury_balance = 0.0 def create_proposal(self, title: str, description: str, amount: float, recipient: str) -> str: """创建提案""" proposal_id = hashlib.sha256(f"{title}{description}{time.time()}".encode()).hexdigest()[:16] self.proposals[proposal_id] = { 'title': title, 'description': description, 'amount': amount, 'recipient': recipient, 'creator': self.agent_id, 'timestamp': time.time(), 'status': 'active', 'votes_for': 0, 'votes_against': 0 } return proposal_id def vote_on_proposal(self, proposal_id: str, vote: bool) -> bool: """对提案投票""" if proposal_id not in self.proposals: return False if self.voting_power <= 0: return False # 记录投票 vote_key = f"{proposal_id}_{self.agent_id}" # self.votes[vote_key] = { 'proposal_id': proposal_id, 'voter': self.agent_id, 'vote': vote, 'voting_power': self.voting_power, 'timestamp': time.time() } # 更新提案投票统计 if vote: # self.proposals[proposal_id]['votes_for'] += self.voting_power else: self.proposals[proposal_id]['votes_against'] += self.voting_power return True def execute_proposal(self, proposal_id: str) -> bool: """执行提案""" if proposal_id not in self.proposals: return False proposal = self.proposals[proposal_id] # 检查投票结果 total_votes = proposal['votes_for'] + # proposal['votes_against'] if total_votes == 0: return False approval_rate = proposal['votes_for'] / total_votes # 需要超过50%的投票支持 if approval_rate > 0.5:# 检查资金 if self.treasury_balance >= # proposal['amount']: # 执行提案 self.treasury_balance -= proposal['amount'] proposal['status'] = # 'executed' return True return False def get_proposal_status(self, proposal_id: str) -> Dict: """获取提案状态""" if proposal_id not in self.proposals: return {} proposal = self.proposals[proposal_id] total_votes = proposal['votes_for'] + proposal['votes_against'] return { 'proposal_id': proposal_id, 'title': proposal['title'], 'status': proposal['status'], 'votes_for': proposal['votes_for'], 'votes_against': proposal['votes_against'], 'total_votes': total_votes, 'approval_rate': proposal['votes_for'] / total_votes if total_votes > 0 else 0 } class CrossChainAgent(BlockchainAgent): def __init__(self, agent_id: str, private_key: str, blockchain_networks: List[str]): super().__init__(agent_id, private_key, blockchain_networks[0]) self.supported_networks = blockchain_networks self.bridge_contracts = {} self.cross_chain_transactions = {} def bridge_tokens(self, from_network: str, to_network: str, token: str, amount: float) -> bool: """跨链桥接代币""" if from_network not in self.supported_networks or to_network not in self.supported_networks: return False # 创建跨链交易 transaction_id = # hashlib.sha256(f"{from_network}{to_network}{token}{amount}{time.time()}".encode()).hexdigest() self.cross_chain_transactions[transaction_id] = { 'from_network': from_network, 'to_network': to_network, 'token': token, 'amount': amount, 'status': 'pending', 'timestamp': time.time() } # 执行跨链操作 # success = self.interact_with_contract( contract_address=self.bridge_contracts.get(from_network, "bridge_contract"), method="bridgeTokens", params={ 'toNetwork': to_network, 'token': token, 'amount': amount, 'transactionId': transaction_id } ) if success: self.cross_chain_transactions[transaction_id]['status'] = 'completed' return success def get_cross_chain_status(self, transaction_id: str) -> Dict: """获取跨链交易状态""" if transaction_id not in self.cross_chain_transactions: return {} return self.cross_chain_transactions[transaction_id] # 使用示例 def main():# 创建区块链智能体 agent = BlockchainAgent("agent_001", "private_key_123", # "ethereum") # 创建DeFi智能体 defi_agent = DeFiAgent("defi_agent_001", "private_key_456", "ethereum")# 创建DAO智能体 dao_agent = DAOAgent("dao_agent_001", "private_key_789", "ethereum")# 创建跨链智能体 # cross_chain_agent = CrossChainAgent("cross_chain_001", "private_key_abc", ["ethereum", "polygon"]) # 执行一些操作 print("区块链智能体操作示例:")# 质押代币 success = agent.stake_tokens(100.0) print(f"质押代币: # {'成功' if success else '失败'}") print(f"当前余额: {agent.balance}, 质押金额: {agent.staked_amount}") # 创建提案 proposal_id = dao_agent.create_proposal( "升级系统", "升级智能合约系统", 50.0, # "developer_address" ) print(f"创建提案: {proposal_id}") # 投票 vote_success = # dao_agent.vote_on_proposal(proposal_id, True) print(f"投票: {'成功' if vote_success else '失败'}") # 获取提案状态 status = dao_agent.get_proposal_status(proposal_id) print(f"提案状态: {status}")# 跨链桥接 # bridge_success = cross_chain_agent.bridge_tokens("ethereum", "polygon", "USDC", 100.0) print(f"跨链桥接: {'成功' if bridge_success else '失败'}") if __name__ == "__main__": main()