如何将反射添加到基本令牌中

Question

我是刚开始踏实的，我发现这个简短而又甜蜜的智能契约可以用来创建你自己的令牌，而且效果很好。

我真正想要做的是在这个极其简单的简短代码中添加反射，这样我就可以确切地了解它是如何工作的。

这是我的代码，摘自此链接

// Code from:
// https://medium.com/huawei-developers/create-your-own-bep20-token-in-10-minutes-1118c4e82454

// Go here to code:
// https://remix.ethereum.org/#optimize=false&runs=200&evmVersion=null&version=soljson-v0.8.7+commit.e28d00a7.js

// SPDX-License-Identifier: GPL-3.0

pragma solidity 0.8.4;
// contract address: 
// symbol: ATT
/**
 * @title Adams_contract
 * @dev Very simple BEP20 Token example, where all tokens are pre-assigned to the creator.
 * Note they can later distribute these tokens as they wish using `transfer` and other
 * `BEP20` functions.
 * USE IT ONLY FOR LEARNING PURPOSES. SHOULD BE MODIFIED FOR PRODUCTION
 */
 
contract Adams_Token {
    string public name = "Adams Test Token 2";
    string public symbol = "ATT";
    uint256 public totalSupply = 999999999999999999000000000000000000; // many tokens
    uint8 public decimals = 18;
    
    /**
     * @dev Emitted when `value` tokens are moved from one account (`from`) to
     * another (`to`).
     *
     * Note that `value` may be zero.
     */
    event Transfer(address indexed _from, address indexed _to, uint256 _value);

     /**
     * @dev Emitted when the allowance of a `spender` for an `owner` is set by
     * a call to {approve}. `value` is the new allowance.
     */
    event Approval(
        address indexed _owner,
        address indexed _spender,
        uint256 _value
    );

    mapping(address => uint256) public balanceOf;
    mapping(address => mapping(address => uint256)) public allowance;

    /**
     * @dev Constructor that gives msg.sender all of existing tokens.
     */
    constructor() {
        balanceOf[msg.sender] = totalSupply;
    }

     /**
     * @dev Moves `amount` tokens from the caller's account to `recipient`.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transfer(address _to, uint256 _value)
        public
        returns (bool success)
    {
        require(balanceOf[msg.sender] >= _value);
        balanceOf[msg.sender] -= _value;
        balanceOf[_to] += _value;
        emit Transfer(msg.sender, _to, _value);
        return true;
    }
    
     /**
     * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * IMPORTANT: Beware that changing an allowance with this method brings the risk
     * that someone may use both the old and the new allowance by unfortunate
     * transaction ordering. One possible solution to mitigate this race
     * condition is to first reduce the spender's allowance to 0 and set the
     * desired value afterwards:
     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
     *
     * Emits an {Approval} event.
     */

    function approve(address _spender, uint256 _value)
        public
        returns (bool success)
    {
        allowance[msg.sender][_spender] = _value;
        emit Approval(msg.sender, _spender, _value);
        return true;
    }

    /**
     * @dev Moves `amount` tokens from `sender` to `recipient` using the
     * allowance mechanism. `amount` is then deducted from the caller's
     * allowance.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(
        address _from,
        address _to,
        uint256 _value
    ) public returns (bool success) {
        require(_value <= balanceOf[_from]);
        require(_value <= allowance[_from][msg.sender]);
        balanceOf[_from] -= _value;
        balanceOf[_to] += _value;
        allowance[_from][msg.sender] -= _value;
        emit Transfer(_from, _to, _value);
        return true;
    }
}

您能修改此代码以添加反射吗？对于新的令牌开发人员来说，缺乏简单的资源，对我来说理解反射是非常有帮助的。

任何在混炼上运行的工作代码的答案都将是非常棒和有帮助的，我相信对于智能契约创建者来说，这将是一个很好的资源。

Answer 1

如果您对稳健性还不熟悉，并且希望开发令牌，那么您应该明确地了解ERC20标准。它是社会上最普遍采用和接受的可替代令牌标准。要了解ERC20令牌是如何工作的，您可以阅读[医]虚证。

在你的例子中，我认为你可以通过此链接找到你的答案。其中，它部署了一个简单的ERC20合同，每笔交易都要收取市场费用。

希望能帮上忙！

Answer 2

当您使用标准ERC20令牌代码很容易的时候，您可以轻松地创建一个反射令牌。在这种情况下，你也应该知道一些简单的经济因素，比如通货紧缩和通货膨胀是如何运作的。你可以使用github的反射合同。反射令牌示例

看看合同中的主要函数，如_getCurrentSupply和_getRate，这两种方法给出了令牌处于通缩或拐点状态的条件。当供给减少时，利率会增加，因此在所有令牌持有者中都会自动发生反射。每个交易者都收取一定的费用，交易越多，就会收取更多的费用，从而产生更多的通货紧缩，意味着更多的稀缺。你可以深入了解这一切是如何运作的。