配置样例:require("@nomicfoundation/hardhat-toolbox"); require("dotenv").config(); /** @type import('hardhat/config').HardhatUserConfig */ module.exports = { solidity: "0.8.27", etherscan: { apiKey: { sepolia: process.env.ETHERSCAN_API_KEY } }, networks: { sepolia: { url: process.env.INFURA_API_URL, accounts: [process.env.PRIVATE_KEY] } } };