...要区分链上的和链下的资金。
在链上手续费较高的时候，LSP 还可以通过在...
...n "setValue". Two or more base classes define functions with the same name and parameter types`
意思是：因为父合约定义具有相同名称和参数类型的函数，派生合约必须重写（[override](https://learnblockchain.cn/docs/solidity/contracts.html#overriding)）函数“setVal...
...Def. 2.4 (Asset Slippage)
* @dev Calculates -Si or -Sj (slippage from and slippage to)
* @param k K slippage parameter in WAD
* @param n N slippage parameter
* @param c1 C1 slippage parameter in WAD
* @param xThreshold xThreshold slippage parameter in WAD
* @param cash ...
...enId, address indexed user, uint64 expires);
/// @notice set the user and expires of an NFT
/// @dev The zero address indicates there is no user
/// Throws if `tokenId` is not valid NFT
/// @param user The new user of the NFT
/// @param expires UNIX timestamp, The new user...