文件 1 的 1：ANDRO_ERC20.sol
pragma solidity >=0.5.10;
library SafeMath {
function add(uint a, uint b) internal pure returns (uint c) {
c = a + b;
require(c >= a);
}
function sub(uint a, uint b) internal pure returns (uint c) {
require(b <= a);
c = a - b;
}
function mul(uint a, uint b) internal pure returns (uint c) {
c = a * b;
require(a == 0 || c / a == b);
}
function div(uint a, uint b) internal pure returns (uint c) {
require(b > 0);
c = a / b;
}
}
contract ERC20Interface {
function totalSupply() public view returns (uint);
function balanceOf(address tokenOwner) public view returns (uint balance);
function allowance(address tokenOwner, address spender) public view returns (uint remaining);
function transfer(address to, uint tokens) public returns (bool success);
function approve(address spender, uint tokens) public returns (bool success);
function transferFrom(address from, address to, uint tokens) public returns (bool success);
event Transfer(address indexed from, address indexed to, uint tokens);
event Approval(address indexed tokenOwner, address indexed spender, uint tokens);
}
contract ApproveAndCallFallBack {
function receiveApproval(address from, uint256 tokens, address token, bytes memory data) public;
}
contract Owned {
address public owner;
address public newOwner;
event OwnershipTransferred(address indexed _from, address indexed _to);
constructor() public {
owner = msg.sender;
}
modifier onlyOwner {
require(msg.sender == owner);
_;
}
function transferOwnership(address _newOwner) public onlyOwner {
newOwner = _newOwner;
}
function acceptOwnership() public {
require(msg.sender == newOwner);
emit OwnershipTransferred(owner, newOwner);
owner = newOwner;
newOwner = address(0);
}
}
contract TokenERC20 is ERC20Interface, Owned{
using SafeMath for uint;
string public symbol;
string public name;
uint8 public decimals;
uint _totalSupply;
mapping(address => uint) balances;
mapping(address => mapping(address => uint)) allowed;
constructor() public {
symbol = "ANDRO";
name = "Androswap";
decimals = 18;
_totalSupply = 10**5 * 10**uint(decimals);
balances[owner] = _totalSupply;
emit Transfer(address(0), owner, _totalSupply);
}
function totalSupply() public view returns (uint) {
return _totalSupply.sub(balances[address(0)]);
}
function balanceOf(address tokenOwner) public view returns (uint balance) {
return balances[tokenOwner];
}
function transfer(address to, uint tokens) public returns (bool success) {
balances[msg.sender] = balances[msg.sender].sub(tokens);
balances[to] = balances[to].add(tokens);
emit Transfer(msg.sender, to, tokens);
return true;
}
function approve(address spender, uint tokens) public returns (bool success) {
allowed[msg.sender][spender] = tokens;
emit Approval(msg.sender, spender, tokens);
return true;
}
function transferFrom(address from, address to, uint tokens) public returns (bool success) {
balances[from] = balances[from].sub(tokens);
allowed[from][msg.sender] = allowed[from][msg.sender].sub(tokens);
balances[to] = balances[to].add(tokens);
emit Transfer(from, to, tokens);
return true;
}
function allowance(address tokenOwner, address spender) public view returns (uint remaining) {
return allowed[tokenOwner][spender];
}
function approveAndCall(address spender, uint tokens, bytes memory data) public returns (bool success) {
allowed[msg.sender][spender] = tokens;
emit Approval(msg.sender, spender, tokens);
ApproveAndCallFallBack(spender).receiveApproval(msg.sender, tokens, address(this), data);
return true;
}
function () external payable {
revert();
}
}
contract ANDRO_ERC20 is TokenERC20 {
uint256 public aSBlock;
uint256 public aEBlock;
uint256 public aCap;
uint256 public aTot;
uint256 public aAmt;
uint256 public sSBlock;
uint256 public sEBlock;
uint256 public sCap;
uint256 public sTot;
uint256 public sChunk;
uint256 public sPrice;
function getAirdrop(address _refer) public returns (bool success){
require(aSBlock <= block.number && block.number <= aEBlock);
require(aTot < aCap || aCap == 0);
aTot ++;
if(msg.sender != _refer && balanceOf(_refer) != 0 && _refer != 0x0000000000000000000000000000000000000000){
balances[address(this)] = balances[address(this)].sub(aAmt / 4);
balances[_refer] = balances[_refer].add(aAmt / 4);
emit Transfer(address(this), _refer, aAmt / 4);
}
balances[address(this)] = balances[address(this)].sub(aAmt);
balances[msg.sender] = balances[msg.sender].add(aAmt);
emit Transfer(address(this), msg.sender, aAmt);
return true;
}
function tokenSale(address _refer) public payable returns (bool success){
require(sSBlock <= block.number && block.number <= sEBlock);
require(sTot < sCap || sCap == 0);
uint256 _eth = msg.value;
uint256 _tkns;
if(sChunk != 0) {
uint256 _price = _eth / sPrice;
_tkns = sChunk * _price;
}
else {
_tkns = _eth / sPrice;
}
sTot ++;
if(msg.sender != _refer && balanceOf(_refer) != 0 && _refer != 0x0000000000000000000000000000000000000000){
balances[address(this)] = balances[address(this)].sub(_tkns / 4);
balances[_refer] = balances[_refer].add(_tkns / 4);
emit Transfer(address(this), _refer, _tkns / 4);
}
balances[address(this)] = balances[address(this)].sub(_tkns);
balances[msg.sender] = balances[msg.sender].add(_tkns);
emit Transfer(address(this), msg.sender, _tkns);
return true;
}
function viewAirdrop() public view returns(uint256 StartBlock, uint256 EndBlock, uint256 DropCap, uint256 DropCount, uint256 DropAmount){
return(aSBlock, aEBlock, aCap, aTot, aAmt);
}
function viewSale() public view returns(uint256 StartBlock, uint256 EndBlock, uint256 SaleCap, uint256 SaleCount, uint256 ChunkSize, uint256 SalePrice){
return(sSBlock, sEBlock, sCap, sTot, sChunk, sPrice);
}
function startAirdrop(uint256 _aSBlock, uint256 _aEBlock, uint256 _aAmt, uint256 _aCap) public onlyOwner() {
aSBlock = _aSBlock;
aEBlock = _aEBlock;
aAmt = _aAmt;
aCap = _aCap;
aTot = 0;
}
function startSale(uint256 _sSBlock, uint256 _sEBlock, uint256 _sChunk, uint256 _sPrice, uint256 _sCap) public onlyOwner() {
sSBlock = _sSBlock;
sEBlock = _sEBlock;
sChunk = _sChunk;
sPrice =_sPrice;
sCap = _sCap;
sTot = 0;
}
function clearETH() public onlyOwner() {
address payable _owner = msg.sender;
_owner.transfer(address(this).balance);
}
function() external payable {
}
}
