有没有办法终止一个进程以os.exec开始在Golang？例如(从
http://golang.org/pkg/os/exec/#example_Cmd_Start)，
cmd := exec.Command("sleep","5")
err := cmd.Start()
if err != nil {
log.Fatal(err)
}
log.Printf("Waiting for command to finish...")
err = cmd.Wait()
log.Printf("Command finished with error: %v",err)
有没有办法提前终止该进程，也许3秒后？
提前致谢
启动命令后：
done := make(chan error,1)
go func() {
done <- cmd.Wait()
}()
select {
case <-time.After(3 * time.Second):
if err := cmd.Process.Kill(); err != nil {
log.Fatal("Failed to kill: ",err)
}
log.Println("process killed as timeout reached")
case err := <-done:
if err != nil {
log.Printf("process done with error = %v",err)
} else {
log.Print("process done gracefully without error")
}
}
或者：
>过程结束，并通过完成接收其错误(如果有)> 3秒过去了，程序被杀死。
