碰到了一个题,因为本身对promise了解不深,所以记录一下
Promise,resolve().then(()=>{
console.log(0)
return Promise.resolve(4)
}).then(res=>{
console.log(res)
})
Promise.resolve().then(()=>{
console.log(1)
}).then(()=>{
console.log(2)
}).then(()=>{
console.log(3)
}).then(()=>{
console.log(5)
}).then(()=>{
console.log(6)
}).then(()=>{
console.log(7)
})