题

async function async1() {
  console.log(1);
  await async2();
  console.log(2);
}
async function async2() {
  console.log(3);
}
new Promise((resolve, reject) => {
  setTimeout(() => {
    resolve()
    console.log(4)
  }, 1000);
}).then(() => {
  console.log(5)
  new Promise((resolve, reject) => {
    setTimeout(() => {
      async1()
      resolve()
      console.log(6)
    }, 1000)
  }).then(() => {
    console.log(7)
  }).then(() => {
    console.log(8)
  })
}).then(() => {
  console.log(9)
})
new Promise((resolve, reject) => {
  console.log(10)
  setTimeout(() => {
    resolve()
    console.log(11)
  }, 3000);
}).then(() => {
  console.log(12)
})