Solidity 以太坊智能合约标准-ERC165(2023版)

ERC-165 Standard Interface Detection ，即检测合约是否实现接囗规范，使用函数标识（.selecor）进行检测。

可参考：ERC-165: Standard Interface Detection

接口实现：

// SPDX-License-Identifier: Apache-2.0

pragma solidity ^0.8.7;

interface IERC165 {
    /// @notice Query if a contract implements an interface
    /// @param interfaceID The interface identifier, as specified in ERC-165
    /// @dev Interface identification is specified in ERC-165. This function
    ///  uses less than 30,000 gas.
    /// @return `true` if the contract implements `interfaceID` and
    ///  `interfaceID` is not 0xffffffff, `false` otherwise
    function supportsInterface(bytes4 interfaceID) external view returns (bool);
}

合约代码示例： 

// SPDX-License-Identifier: Apache-2.0
pragma solidity