letsecond=['0','1','2','3','4','5','6','7','8','9'];
setInterval(()=>{
second.push(Number(second[second.length-1])+1+'')
second.shift()
console.log(second)
},1000);
這個是shift一個，push一個的實現(xiàn)
                            

反對 回復(fù) 2019-05-20