**
什麼都不需要準備
*1.
啓動網頁的remix-ide即可
https://remix.ethereum.org/#appVersion=0.7.7&optimize=false&version=soljson-v0.5.1+commit.c8a2cb62.js
solidity代碼如下:
pragma solidity ^0.5.10;
/**
* @title Token ERC20 implementation
* @dev Simplified version - Contract allows only Transfer and Burn Tokens
* @dev source: https://www.ethereum.org/token
*/
contract TokenERC20 {
// Public variables of the token
string public name;
string public symbol;
uint8 public decimals = 18;
// 18 decimals is the strongly suggested default, avoid changing it
uint256 public totalSupply;
// This creates an array with all balances
mapping (address => uint256) public balanceOf;
// This generates a public event on the blockchain that will notify clients
event Transfer(address indexed from, address indexed to, uint256 value);
// This notifies clients about the amount burnt
event Burn(address indexed from, uint256 value);
/**
* Constructor function
*
* Initializes contract with initial supply tokens to the creator of the contract
*/
constructor(uint256 initialSupply, string memory tokenName, string memory tokenSymbol)
public
{
totalSupply = initialSupply * 10 ** uint256(decimals); // Update total supply with the decimal amount
balanceOf[msg.sender] = totalSupply; // Give the creator all initial tokens
name = tokenName; // Set the name for display purposes
symbol = tokenSymbol; // Set the symbol for display purposes
}
/**
* Internal transfer, only can be called by this contract
*/
function _transfer(address _from, address _to, uint _value)
internal
{
// Prevent transfer to 0x0 address. Use burn() instead
require(_to != address(0x0));
// Check if the sender has enough
require(balanceOf[_from] >= _value);
// Check for overflows
require(balanceOf[_to] + _value >= balanceOf[_to]);
// Save this for an assertion in the future
uint previousBalances = balanceOf[_from] + balanceOf[_to];
// Subtract from the sender
balanceOf[_from] -= _value;
// Add the same to the recipient
balanceOf[_to] += _value;
emit Transfer(_from, _to, _value);
// Asserts are used to use static analysis to find bugs in your code. They should never fail
assert(balanceOf[_from] + balanceOf[_to] == previousBalances);
}
/**
* Transfer tokens
*
* Send `_value` tokens to `_to` from your account
*
* @param _to The address of the recipient
* @param _value the amount to send
*/
function transfer(address _to, uint256 _value)
public
returns (bool success)
{
_transfer(msg.sender, _to, _value);
return true;
}
/**
* Destroy tokens
*
* Remove `_value` tokens from the system irreversibly
*
* @param _value the amount of money to burn
*/
function burn(uint256 _value)
public
returns (bool success)
{
require(balanceOf[msg.sender] >= _value); // Check if the sender has enough
balanceOf[msg.sender] -= _value; // Subtract from the sender
totalSupply -= _value; // Updates totalSupply
emit Burn(msg.sender, _value);
return true;
}
}
部署的話
三個參數,代幣總金額,名字,代幣符號(隨你寫了)
拷貝合約地址
添加代幣,成功後就像我這樣!
最後附加上我的代幣地址
0x80aae114cd8482d6a86d279c38e56a8e64799500
代碼哪裏不懂,或者需要測試幣的可以留言