调试中...
functions =
[() => new Promise(res => setTimeout(res, 300)), () => new Promise(res => setTimeout(res, 400)), () => new Promise(res => setTimeout(res, 200))]
n =
2
[() => new Promise(res => setTimeout(res, 300)), () => new Promise(res => setTimeout(res, 400)), () => new Promise(res => setTimeout(res, 200))]
2
[() => new Promise(res => setTimeout(res, 300)), () => new Promise(res => setTimeout(res, 400)), () => new Promise(res => setTimeout(res, 200))]
5
[() => new Promise(res => setTimeout(res, 300)), () => new Promise(res => setTimeout(res, 400)), () => new Promise(res => setTimeout(res, 200))]
1