// 宏 1 8 7 // 微 11 3 9 4 10 // log: 2 6 setTimeout(function () { console.log(1) }, 0); new Promise(function (resolve, reject) { console.log(2) for (var i = 0; i < 10000; i++) { if (i === 10) { console.log(10) } i == 9999 && resolve(); } console.log(3) }).then(function () { console.log(4) }) console.log(5); // 2, 10, 3, 5, 4, 1