SOURCE

function sleep(time){
    return new Promise((resolve,reject)=>{
        setTimeout(()=>{
            console.log(time)
            if(time==3000){
                reject('3000登录报错')
            }
            if(time==5000){
                reject('5000登录报错')
            }
        },time)
    })
}

async function test(){
    try{
        await Promise.all([sleep(3000),sleep(5000)])
        console.log('登录成功')
    }catch(error){
        console.log(error,11111)
    }
}

test()