如何从帐号ID获取SS58地址？

const { Keyring } = require('@polkadot/keyring');

async function getSS58AddressFromAccountId(accountId) {
  // 连接到Substrate区块链网络
  const { ApiPromise, WsProvider } = require('@polkadot/api');
  const provider = new WsProvider('wss://rpc.polkadot.io');
  const api = await ApiPromise.create({ provider });

  // 创建Keyring对象
  const keyring = new Keyring({ type: 'sr25519' });

  // 获取帐号的密钥对
  const pair = keyring.getPair(accountId);

  // 获取SS58地址
  const ss58Address = pair.address;

  return ss58Address;
}

// 示例用法
const accountId = '5FHneW46xGXgs5mUiveU4sbTyGBzmstUspZC92UhjJM694ty';
getSS58AddressFromAccountId(accountId)
  .then((ss58Address) => {
    console.log('SS58地址:', ss58Address);
  })
  .catch((error) => {
    console.error('获取SS58地址时出错:', error);
  });