如何在一个承诺中返回多个“等待”

const promise1 = new Promise((resolve, reject) => {
  setTimeout(() => {
    resolve('等待1');
  }, 2000);
});

const promise2 = new Promise((resolve, reject) => {
  setTimeout(() => {
    resolve('等待2');
  }, 3000);
});

const promise3 = new Promise((resolve, reject) => {
  setTimeout(() => {
    resolve('等待3');
  }, 4000);
});

Promise.all([promise1, promise2, promise3])
  .then((results) => {
    console.log(results); // ['等待1', '等待2', '等待3']
  })
  .catch((error) => {
    console.error(error);
  });