区块链钱包的实现涉及多个方面，包括密钥管理、交易构建、与区块链网络的交互等。下面是一个简单的示例，演示如何使用Python创建一个基础的区块链钱包代码框架。请注意，这是一个简化版本，仅供学习和参考，实际的区块链钱包会更复杂，需要考虑安全性、可扩展性等问题。 ### 基础区块链钱包代码示例 ```python import hashlib import json from time import time from urllib.parse import urlparse import requests from uuid import uuid4 class Blockchain: def __init__(self): self.chain = [] self.current_transactions = [] self.nodes = set() self.new_block(previous_hash='1', proof=100) def new_block(self, proof, previous_hash=None): block = { 'index': len(self.chain) 1, 'timestamp': time(), 'transactions': self.current_transactions, 'proof': proof, 'previous_hash': previous_hash or self.hash(self.chain[-1]), } self.current_transactions = [] self.chain.append(block) return block def new_transaction(self, sender, recipient, amount): self.current_transactions.append({ 'sender': sender, 'recipient': recipient, 'amount': amount, }) return self.last_block['index'] 1 @staticmethod def hash(block): block_string = json.dumps(block, sort_keys=True).encode() return hashlib.sha256(block_string).hexdigest() @property def last_block(self): return self.chain[-1] def register_node(self, address): parsed_url = urlparse(address) self.nodes.add(parsed_url.netloc) def valid_chain(self, chain): last_block = chain[0] current_index = 1 while current_index len(chain): block = chain[current_index] if block['previous_hash'] != self.hash(last_block): return False last_block = block current_index = 1 return True def resolve_conflicts(self): neighbours = self.nodes new_chain = None max_length = len(self.chain) for node in neighbours: response = requests.get(f'http://{node}/chain') if response.status_code == 200: length = response.json()['length'] chain = response.json()['chain'] if length max_length and self.valid_chain(chain): max_length = length new_chain = chain if new_chain: self.chain = new_chain return True return False # 创建钱包函数 def create_wallet(): # 使用UUID生成唯一的地址 wallet_address = str(uuid4()).replace('-', '') return wallet_address # 示例：使用钱包 if __name__ == 区块链钱包的实现涉及多个方面，包括密钥管理、交易构建、与区块链网络的交互等。下面是一个简单的示例，演示如何使用Python创建一个基础的区块链钱包代码框架。请注意，这是一个简化版本，仅供学习和参考，实际的区块链钱包会更复杂，需要考虑安全性、可扩展性等问题。 ### 基础区块链钱包代码示例 ```python import hashlib import json from time import time from urllib.parse import urlparse import requests from uuid import uuid4 class Blockchain: def __init__(self): self.chain = [] self.current_transactions = [] self.nodes = set() self.new_block(previous_hash='1', proof=100) def new_block(self, proof, previous_hash=None): block = { 'index': len(self.chain) 1, 'timestamp': time(), 'transactions': self.current_transactions, 'proof': proof, 'previous_hash': previous_hash or self.hash(self.chain[-1]), } self.current_transactions = [] self.chain.append(block) return block def new_transaction(self, sender, recipient, amount): self.current_transactions.append({ 'sender': sender, 'recipient': recipient, 'amount': amount, }) return self.last_block['index'] 1 @staticmethod def hash(block): block_string = json.dumps(block, sort_keys=True).encode() return hashlib.sha256(block_string).hexdigest() @property def last_block(self): return self.chain[-1] def register_node(self, address): parsed_url = urlparse(address) self.nodes.add(parsed_url.netloc) def valid_chain(self, chain): last_block = chain[0] current_index = 1 while current_index len(chain): block = chain[current_index] if block['previous_hash'] != self.hash(last_block): return False last_block = block current_index = 1 return True def resolve_conflicts(self): neighbours = self.nodes new_chain = None max_length = len(self.chain) for node in neighbours: response = requests.get(f'http://{node}/chain') if response.status_code == 200: length = response.json()['length'] chain = response.json()['chain'] if length max_length and self.valid_chain(chain): max_length = length new_chain = chain if new_chain: self.chain = new_chain return True return False # 创建钱包函数 def create_wallet(): # 使用UUID生成唯一的地址 wallet_address = str(uuid4()).replace('-', '') return wallet_address # 示例：使用钱包 if __name__ ==