区块链发币系统搭建，数字货币挖矿系统软件开发

# 导入必要的库  import hashlib  import time    # 定义数字货币信息  coin_name = "Bitcoin"  # 数字货币名称  difficulty = 4         # 挖矿难度  target = 0             # 目标值  block_reward = 10      # 每个区块的奖励金额    # 定义挖矿函数  【完整逻辑部署搭建可看我昵称】def mine_block(previous_hash, data):      target_value = (2 ** 256) / difficulty      nonce = 0      while hash_value < target_value:          nonce += 1          hash_value = hashlib.sha256((str(previous_hash) + str(nonce) + data).encode('utf-8')).hexdigest()      return nonce, hash_value, data    # 定义区块类  class Block:      def __init__(self, index, previous_hash, timestamp, data, hash):          self.index = index          self.previous_hash = previous_hash          self.timestamp = timestamp          self.data = data          self.hash = hash    # 创建创世区块  【完整逻辑部署搭建可看我昵称】genesis_block = Block(0, "0", int(time.time()), "Genesis Block", hashlib.sha256("Genesis Block".encode('utf-8')).hexdigest())    # 挖矿并创建第一个区块  nonce, hash_value, data = mine_block(genesis_block.hash, genesis_block.data)  first_block = Block(1, genesis_block.hash, int(time.time()), str(nonce) + genesis_block.data, hash_value)    # 打印第一个区块信息  print("Block", first_block.index, "created at", first_block.timestamp)  print("Data:", first_block.data)  print("Hash:", first_block.hash)