掌趣电竞系统开发介绍案例，掌趣电竞源码功能

掌趣电竞系统开发案例介绍

简而言之，区块链是一种分布式的数据库，具有去中心化、不可篡改、可以追溯等特点，这些特点保证了区块链节点的“诚实”和“透明”，解决了信息不对称问题，实现了多个主体之间的信任协作和行动一致。为了方便理解区块和区块链的概念，可以参考如下简化的Python代码实现：

class Block:
def init(self, index, transactions, timestamp, previous_hash, nonce=0):
self.index = index
self.transactions = transactions
self.timestamp = timestamp
self.previous_hash = previous_hash
self.nonce = nonce def compute_hash(self):
block_string = json.dumps(self.dict, sort_keys=True) return sha256(block_string.encode()).hexdigest()class Blockchain:
difficulty = 2

def init(self):
self.unconfirmed_transactions = []
self.chain = [] def create_genesis_block(self):
genesis_block = Block(0, [], 0, “0”)
genesis_block.hash = genesis_block.compute_hash()
self.chain.append(genesis_block) @property
def last_block(self):
return self.chain[-1] def add_block(self, block, proof):
previous_hash = self.last_block.hash if previous_hash != block.previous_hash: return False

   if not Blockchain.is_valid_proof(block, proof):            return False

   block.hash = proof
   self.chain.append(block)        return True    @staticmethod

def proof_of_work(block):
block.nonce = 0

   computed_hash = block.compute_hash()        while not computed_hash.startswith('0' * Blockchain.difficulty):
       block.nonce += 1
       computed_hash = block.compute_hash()        return computed_hash    def add_new_transaction(self, transaction):
   self.unconfirmed_transactions.append(transaction)    @classmethod

def is_valid_proof(cls, block, block_hash):
return (block_hash.startswith(‘0’ * Blockchain.difficulty) and
block_hash == block.compute_hash())