假设一名厨师，需要做3道菜,声明一个菜数组，菜对象是菜名和做菜需要的时间
let dishes=[{name:"fish",time:1},{name:"fish1",time:2},{name:"fish3",time:3}]首先，厨师做菜应该一道接一道的做，所以得保证一道菜做后才开始做下一道菜。这里用async/await实现，当然也可以选择都用Promise
(async ()=>{
for (let d of ds) {
console.log("开始做"+d.name)
await (() => {
return new Promise(res => {
setTimeout(res, d.time * 1000)
})
})();
console.log("做好了"+d.name)
}
})下载本文