迪斯克DisruptDEX系统开发智能合约

Disrupt DEX提供以下功能：wx_kaifa873

创建和撤销订单：用户可以创建订单，设置买卖价格和数量，并随时撤销订单。

货币兑换：用户可以通过Disrupt DEX将一种数字货币转换成另一种数字货币。

交易历史记录：Disrupt DEX记录所有交易历史，用户可以随时查看和跟踪自己的交易记录。

使用Solidity编写的Disrupt DEX智能合约代码示例：

scssCopy codepragma solidity ^0.8.0;
contract DisruptDEX {
struct Order {
address user;
bool isBuy;
uint256 price;
uint256 amount;
}
mapping(bytes32 => Order) public orders;

function createOrder(bool _isBuy, uint256 _price, uint256 _amount) public {
    bytes32 orderId = keccak256(abi.encodePacked(msg.sender, block.timestamp));
    orders[orderId] = Order(msg.sender, _isBuy, _price, _amount);
}

function cancelOrder(bytes32 _orderId) public {    
    require(msg.sender == orders[_orderId].user, "Only order creator can cancel order");
    delete orders[_orderId];
}

function trade(bytes32 _orderId, uint256 _amount) public payable {    
    require(orders[_orderId].amount >= _amount, "Not enough amount");   
         require(msg.value == _amount * orders[_orderId].price, "Incorrect payment amount");        
    address seller = orders[_orderId].user;
    uint256 fee = msg.value / 100;
    uint256 tradeValue = msg.value - fee;

    if (orders[_orderId].isBuy) {     
           require(tradeValue <= address(this).balance, "Not enough balance");    
                   payable(seller).transfer(tradeValue);