let send = (item) => Promise.resolve(`此时参数是：（${item}）`)
async function init(){
const arr = [1,2,3,4,5]
let res = 0
await arr.forEach(item=>{
send(item).then(e=>{
console.log(e)
res++
console.log(res)
})
})
console.log(res)
}
init()
原文：https://www.cnblogs.com/qq364735538/p/10414374.html