动手写一遍，印象不一样！

package mainimport (    "log"    "os"    "os/exec"    "syscall")func main() {    cmd := exec.Command("sh")    cmd.SysProcAttr = &syscall.SysProcAttr{}    cmd.SysProcAttr.Cloneflags = syscall.CLONE_NEWNS | syscall.CLONE_NEWUTS | syscall.CLONE_NEWPID | syscall.CLONE_NEWIPC | syscall.CLONE_NEWNET    cmd.SysProcAttr.Credential = &syscall.Credential{Uid: uint32(1), Gid: uint32(1)}    cmd.Stdin = os.Stdin    cmd.Stdout = os.Stdout    cmd.Stderr = os.Stderr    if err := cmd.Run(); err != nil {        log.Fatal(err)    }    os.Exit(-1)}