ES6 promise 运行原理
<script>
new Promise((resolve,reject)=>{
console.log("11111111111111111");
setTimeout(()=>{
resolve("##################");
})
}).then(res=>{
console.log(res);
})
</script>
<script>
new Promise((resolve,reject)=>{
console.log("11111111111111111");
setTimeout(()=>{
resolve("##################");
})
}).then(res=>{
console.log(res);
})
</script>