1.请顺序写出输出日志 console.log('start')
function test () { console.log('start-test') return new Promise((resolve, reject) => { console.log('promise'); setTimeout(() => { console.log('setTimeout'); }, 0) resolve(); reject(); }) console.log('end-test'); }
test() .then(() => { console.log('then'); }) .catch(() => { console.log('catch') })