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在根目录下添加 truffle-config.js

/**
 * Use this file to configure your truffle project. It's seeded with some
 * common settings for different networks and features like migrations,
 * compilation and testing. Uncomment the ones you need or modify
 * them to suit your project as necessary.
 *
 * More information about configuration can be found at:
 *
 * truffleframework.com/docs/advanced/configuration
 *
 * To deploy via Infura you'll need a wallet provider (like truffle-hdwallet-provider)
 * to sign your transactions before they're sent to a remote public node. Infura accounts
 * are available for free at: infura.io/register.
 *
 * You'll also need a mnemonic - the twelve word phrase the wallet uses to generate
 * public/private key pairs. If you're publishing your code to GitHub make sure you load this
 * phrase from a file you've .gitignored so it doesn't accidentally become public.
 *
 */

module.exports = {
   /**
    * Networks define how you connect to your ethereum client and let you set the
    * defaults web3 uses to send transactions. If you don't specify one truffle
    * will spin up a development blockchain for you on port 9545 when you
    * run `develop` or `test`. You can ask a truffle command to use a specific
    * network from the command line, e.g
    *
    * $ truffle test --network <network-name>
    */
 
   networks: {
     development: {
      host: "127.0.0.1",     // Localhost (default: none)
      port: 8545,            // Standard Ethereum port (default: none)
      network_id: "*",       // Any network (default: none)
     },
   },
 
   // Set default mocha options here, use special reporters etc.
   mocha: {
     // timeout: 100000
   },
 
   // Configure your compilers
   compilers: {
     solc: {
       version: "0.8.7",    // Fetch exact version from solc-bin (default: truffle's version)
       docker: true,        // Use "0.5.1" you've installed locally with docker (default: false)
       settings: {          // See the solidity docs for advice about optimization and evmVersion
        evmVersion: "istanbul"
       }
     }
   }
}

启动一个本地节点

yarn add ganache-cli
yarn run ganache-cli -d --networkId 1337 --chainId 1337

部署合约到本地节点

npx truffle deploy