maxpread持币生息系统开发

　　区块链开发者要对区块链的理论知识具备熟悉的掌握能力，这是作为一名区块链开发者【181公链2591合约開发3365微电】基本的要求。在里面的内容包括了区块链网络架构、去中心化等相关应用技术。拓展技术理论是对以太坊开发的掌握。

　　智能合约是需要区块链开发者用区块链编程语言写出来的一串代码，根据不同场景构思逻辑后开发出来的信任机制，旨在第三方的介入，创造出、高信任的区块链网络。区块链开发者要实现这串代码自动执行，且是不可逆的操作效果。
function disregardProposeOwner() public {
    require(msg.sender == proposedOwner || msg.sender == owner, "only proposedOwner or owner");
    require(proposedOwner != address(0), "can only disregard a proposed owner that was previously set");
    address _oldProposedOwner = proposedOwner;
    proposedOwner = address(0);
    emit OwnershipTransferDisregarded(_oldProposedOwner);
  }

  /**
  * @dev Allows the proposed owner to complete transferring control of the contract to the proposedOwner.
  */
  function claimOwnership() public {
    require(msg.sender == proposedOwner, "onlyProposedOwner");
    address _oldOwner = owner;
    owner = proposedOwner;
    proposedOwner = address(0);
    emit OwnershipTransferred(_oldOwner, owner);
  }

　　区块链开发人者必须懂得分布式架构和网络的功能。去中心化网络是区块链架构的基础，在区块链网络中信息的传递要遵循去中心化的方式，这样每个人才能享受到同等的网络权益。

　　国内正在大力推进区块链领域，这也导致了区块链开发者在市场上是非常抢手的。发展区块链开发人才是发展区块链产业的重要一步，也是目前我们正在追求的目标。
/**
  * @dev Reclaim all BUSD at the contract address.
  * This sends the BUSD tokens that this contract add holding to the owner.
  * Note: this is not affected by freeze constraints.
  */
  function reclaimBUSD() external onlyOwner {
    uint256 _balance = balances[this];
    balances[this] = 0;
    balances[owner] = balances[owner].add(_balance);
    emit Transfer(this, owner, _balance);
  }