/**
* @file 返回一个 Promise，并在 ms 毫秒后 Promise 变为完成状态
*/
export function sleep(ms: number): Promise<undefined> {
// 补全此处代码
throw new Error('功能待实现');
}
async function main(){
console.log('a')
await sleep(1000);
console.log('b');
await sleep(1000);
console.log('c');
}
main()
export default {}
/**
* @file 返回一个 Promise，并在 ms 毫秒后 Promise 变为完成状态
*/
export function sleep(ms: number): Promise<undefined> {
// 参考答案
return new Promise(
(
resolve: (value: undefined) => void,
reject: (value: undefined) => void
) => {
setTimeout(() => {
resolve(undefined);
}, ms);
}
);
}
async function main() {
console.log("a");
await sleep(1000);
console.log("b");
await sleep(1000);
console.log("c");
}
main();
export default {};
