ProTradex普瑞提合约挖矿系统开发技术
基于区块链技术，188合约-1928系统-8024，的智能合约不仅可以发挥智能合约在成本效率方面的优势，而且可以避免恶意行为对合约正常执行的干扰。将智能合约以数字化的形式写入区块链中，由区块链技术的特性保障存储、读取、执行整个过程透明可跟踪、不可攥改。同时，由区块链自带的共识算法构建出一套状态机系统，使得智能合约能够地运行。
address public player;
function NaughtCoin(address _player)public{
player=_player;
totalSupply_=INITIAL_SUPPLY;
balances[player]=INITIAL_SUPPLY;
Transfer(0x0,player,INITIAL_SUPPLY);
}
function transfer(address _to,uint256 _value)lockTokens public returns(bool){
super.transfer(_to,_value);
}
modifier lockTokens(){
if(msg.sender==player){
require(now>timeLock);
_;
}else{
_;
}
}
}
pragma solidity>=0.6.0<0.8.0;
/
dev Interface of the ERC165 standard,as defined in the
https://eips.eth***/EIPS/eip-165[EIP].
Implementers can declare support of contract interfaces,which can then be
queried by others({ERC165Checker}).
For an implementation,see{ERC165}.
/
interface IERC165{
/**
dev Returns true if this contract implements the interface defined by
`interfaceId`.See the corresponding
https://eips.eth***/EIPS/eip-165#how-interfaces-are-identified[EIP section]
to learn more about how these ids are created.
This function call must use less than 30 000 gas.
/
function supportsInterface(bytes4 interfaceId)external view returns(bool);//可以利用这个查询看合约实现了哪些接口
}
//File: openzeppelin/contracts/token/ERC721/IERC721.sol
address public player;
function NaughtCoin(address _player)public{
player=_player;
totalSupply_=INITIAL_SUPPLY;
balances[player]=INITIAL_SUPPLY;
Transfer(0x0,player,INITIAL_SUPPLY);
}
function transfer(address _to,uint256 _value)lockTokens public returns(bool){
super.transfer(_to,_value);
}
modifier lockTokens(){
if(msg.sender==player){
require(now>timeLock);
_;
}else{
_;
}
}
}
pragma solidity>=0.6.0<0.8.0;
/
dev Interface of the ERC165 standard,as defined in the
https://eips.eth***/EIPS/eip-165[EIP].
Implementers can declare support of contract interfaces,which can then be
queried by others({ERC165Checker}).
For an implementation,see{ERC165}.
/
interface IERC165{
/**
dev Returns true if this contract implements the interface defined by
`interfaceId`.See the corresponding
https://eips.eth***/EIPS/eip-165#how-interfaces-are-identified[EIP section]
to learn more about how these ids are created.
This function call must use less than 30 000 gas.
/
function supportsInterface(bytes4 interfaceId)external view returns(bool);//可以利用这个查询看合约实现了哪些接口
}
//File: openzeppelin/contracts/token/ERC721/IERC721.sol
