setTimeout(function () {
console.log("1");
}, 0);
async function async1() {
console.log("2");
const data = await async2();
console.log("3");
return data;
}
async function async2() {
return new Promise((resolve) => {
console.log("4");
resolve("async2的结果");
}).then((data) => {
console.log("5");
return data;
});
}
async1().then((data) => {
console.log("6");
console.log(data);
});
new Promise(function (resolve) {
console.log("7");
resolve()
}).then(function () {
console.log("8");
});
// 2 4 7 5 8 3 6 async2的结果 1
// 第一次循环
// 宏任务队列:1 微任务队列: 5, 同步:2,4,7
console