...币的`token0`和`token1`。
```javascript
contract LooneySwapPool is ERC20 {
address public token0;
address public token1;
// Reserve of token 0
uint public reserve0;
// Reserve of token 1
uint public reserve1;
...
}
```
创建一个流动池很简单：只需要...
...
```solidity
/**
* @title L1StandardBridge
* @dev The L1 ETH and ERC20 Bridge is a contract which stores deposited L1 funds and standard
* tokens that are in use on L2. It synchronizes a corresponding L2 Bridge, informing it of deposits
* and listening to it for newly finalized withdrawa...