尝试一下，如有错误请大佬指正！ async function parallel(tasks, n) { const ans = {resolved: [], rejected: []}; const executing = new Set(); for (const task of tasks) { const e = task().then(res => { executing.delete(e); ans.resolved.push(res); }).catch(err => { executing.delete(e); ans.rejected.push(err); }); executing.add(e); if (executing.size >= n) { await Promise.race(executing); } } while (executing.size > 0) { await Promise.race(executing); } return ans; }