1/22/2018更新
async function sleep (val,time) {
return new Promise ((resolve,reject) => {
setTimeout(() => {
console.log(val)
resolve()
}, time);
})
}
async function fun () {
await sleep(1,3000)
await sleep(2,1000)
}
fun()
var sleep = function (time) {
return new Promise(function (resolve, reject) {
setTimeout(function () {
console.log('1');
resolve();
}, time);
})
};
var fun = function () {
return new Promise((resolve,reject) => {
setTimeout(() => {
console.log('2');
let a = 5;
resolve(a);
},2000)
})
}
var fun2 = (x)=> {
return new Promise((resolve,reject) => {
setTimeout(() => {
console.log(x);
resolve();
},1000);
})
}
var go= async function () {
console.log('start');
await sleep(3000);
let r = await fun();
await fun2(r);
console.log('end');
};
go();
