//定义一个异步函数
const foo1 = (i) => {
return new Promise((resolve, reject) => {
setTimeout(() => {
console.log(I)
resolve(i)
}, 3000)
})
}
const arr = [1, 2, 3, 4, 5]
async function a() {
for (var i = 0; i < arr.length; i++) {
await foo1(arr[i])
}
}
a()
标签：异步,arr,同步,const,resolve,循环,foo1 From： https://www.cnblogs.com/lzhflzjx/p/16791592.html