class BlockChain:

def __init__(self):

# 储存交易

self.current_transactions = []

# 储存区块链

self.chain = []

# 储存节点

self.nodes = set()

# 创建创世块

self.new_block(previous_hash='1', proof=100)

def register_node(self, address):

pass

def valid_chain(self, chain):

pass

def resolve_conflicts(self):

pass

def new_block(self, proof, previous_hash):

pass

def new_transaction(self, sender, recipient, amount):

pass

@property

def last_block(self):

pass

@staticmethod

def hash(block):

pass

def proof_of_work(self, last_proof):

pass

@staticmethod

def valid_proof(last_proof, proof):

pass