复制
1async function testSometing() {
2  console.log("执行testSometing");
3  return "testSometing";
4}
5
6async function testAsync() {
7  console.log("执行testAsync");
8  return Promise.resolve("hello async");
9}
10
11async function test() {
12  console.log("test start...");
13  const v1 = await testSometing();
14  console.log(v1);
15  const v2 = await testAsync();
16  console.log(v2);
17  console.log(v1, v2);
18}
19
20test();
21
22var promise = new Promise(resolve => {
23  console.log("promise start...");
24  resolve("promise");
25});
26promise.then(val => console.log(val));
27
28console.log("test end...");
29