求指教 session.Run过后如何实时逐行读取Stdout数据

package main

import (
    "bytes"
    "fmt"
    "golang.org/x/crypto/ssh"
    "os"
)

func main() {
    var bt bytes.Buffer
    config := &ssh.ClientConfig{
        User: "test",
        Auth: []ssh.AuthMethod{
            ssh.Password("test"),
        },
    }
    client, err := ssh.Dial("tcp", "10.0.192.123", config)
    if err != nil {
        os.Exit(1)
    }
    session, err := client.NewSession()
    if err != nil {
        os.Exit(1)
    }
    defer session.Close()
    session.Stdout = &bt
    if err := session.Run("/usr/bin/make"); err != nil {
        os.Exit(1)
    }
    fmt.Println(bt.String()) //此处只能一次性读出结果，执行耗时长的命令时，半天无响应
}