ES6 生成器

//需要先获取用户数据在 获取用户的订单，在获取订单中的商品信息
function getUsers(){
    setTimeout(() => {
        console.log("11111111111")
        let data = '用户数据'
        iterator.next(data)
    },1000)
}

function getOrders(){
    setTimeout(()=> {
        let data  = '订单数据'
        iterator.next(data)
    },1000)
}

function getGoods(){
    setTimeout(()=>{
        let data = '商品数据'
        iterator.next(data)
    },1000)
}



function * gen (){
    let users = yield getUsers()
    console.log("users:",users)
    let orders = yield getOrders()
    let goods = yield getGoods()
}
let iterator = gen()

iterator.next()