form表单（简写啦）

form.form-horizontal(method = "post", action = "/admin/movie/new", enctype="multipart/form-data")
  .form-group
    label.col-sm-2.control-label(for="uploadPoster") 海报上传
    .col-sm-10
        input#uploadPoster(type="file", name="uploadPoster")

路由

   app.post('/admin/movie/new', Movie.savePoster, Movie.save);