var p3 = new Promise( (resolve, reject) => {    resolve('B')})var p1 = new Promise( (resolve, reject) => {    resolve(p3)})p2 = new Promise( (resolve, reject) => {    resolve('A')})p1.then(v => console.log(v))p2.then(v => console.log(v))node 與 瀏覽器運行不一致。 正常的理解 p1 內(nèi)部 resolve 了一個 promise 不是同步的的 所以明顯要p2晚一點。