public IActionResult StuLog(Student student) { LogMethod log = new LogMethod(); Student m = log.StuLogin(student); if (m != null) { this.Response.Cookies.Append("Sno", m.Sno); return(RedirectToAction("Index", "Student")); } else { return(Content("<script>alert('登录失败,请检查账号或密码是否输入错误');history.go(-1);</script>", "text/html;charset=UTF-8")); } }