异步

func howToStart(c *bm.Context) {
   k := &model.Kratos{
      Hello: "Golang 大法好 !!!" + fmt.Sprint(time.Now()),
   }
   c.JSON(k, nil)

   go func() {
      for i := 0; i < 1024*1024; i++ {
         time.Sleep(1000 * 10)
         fmt.Println("123")
         fmt.Println(i)
      }
   }()
}