anchor.diff:                                  overflow-y scroll
                               .col
                                   padding 0.8rem
  -                                .upload-block
  +                                .room-block
                                       position relative
                                       height 8rem
                                       width 8rem
                                       border-radius 3px
  -                                .upload-block
  -                                    > i
  -                                        transition 0.6s ease-out
  -                                        cursor pointer
  -                                        display none
  +                                .room-block
                                       > div
                                           transition 0.6s ease-out
                                           position absolute
                                           width 100%
  -                                        height 1.6rem
  +                                        height 2rem
  +                                        line-height: 2rem
                                           bottom 0
                                           display none
                                           background #FFFFFF
                                           opacity 0.5
  -                                        > div
  -                                            display none
  -                                            margin 0
  -                                            margin-top 0.6rem
  -                                .upload-block:hover
  -                                    > i
  -                                        display block
  +                                        cursor pointer
  +                                        p
  +                                            margin 0 auto
  +                                            text-align:center
  +                                .room-block:hover
                                       > div
                                           display block
                       .user
  
positive.code:                             div.row
                                  -for(var i=0;i<25;i++)
                                      div.col
                                          div.upload-block.hoverable.grey.lighten-3
                                              i.material-icons.red-text.right highlight_off
                                              div
                                                  div.progress
                                                      div.indeterminate
              div.col.l3.m3.s4
                  div.card-panel.white.user
                      div.row
  
negative.code:     script.
          (function () {
              $('.slider').slider({full_width: true,interval:3000,indicators:false})
  
              $('.btn.max-btn').eq(1).click(function () {
                  return swal({
                              title: "创建房间",
                              text: '请填写房间名称',
                              html: true,
                              confirmButtonColor: "#26a69a",
                              cancelButtonText: "取消",
                              confirmButtonText: "好",
                              showCancelButton: true,
                              closeOnConfirm: false,
                              inputPlaceholder: "房间名称",
                              type: "input"
                          },
                          function (value) {
                              if (typeof (value) == "boolean" && !value)
                                  return
                              if (!value)
                                  return swal.showInputError("不许为空啦_(:зゝ∠)_")
                              if (value.length> 10)
                                  return swal.showInputError("太♂长了不好使_(:зゝ∠)_")
                              if (ajaxFlag) return 0
                              ajaxFlag = true
                              ajax("/t/" + value, 'GET', function (err, res) {
                                  ajaxFlag = false
                                  if (err) console.log(err)
                                  res = JSON.parse(res)
                                  if (res.result == 200) {
                                      return window.location = "/admin"
                                  }
                                  if (res.result == 404) {
                                      return swal.showInputError("验证码错误~可考虑使用邮箱验证。_(:зゝ∠)_")
                                  }
                              })
                          })
              })
          })()
  
          function ajax(path, method, data, callback) {
              if (!callback) callback = data
              $.ajax({
                  url: path, type: method, cache: false, data: data, contentType: "application/json;charset=utf-8",
                  beforeSend: function () {
                      jQuery("footer>.ajaxLoad").fadeIn(200)
                  },
                  complete: function (res) {
                      jQuery("footer>.ajaxLoad").fadeOut(200)
                      if (res.status == 0) Materialize.toast('网络故障……', 4000)
                      if (res.status == 403) Materialize.toast('服务器残忍地拒绝了这次请求', 4000)
                      if (res.status == 404) Materialize.toast('服务器懵逼了', 4000)
                      if (res.status == 500) Materialize.toast('服务器傻掉了', 4000)
                      callback(res.responseText.code, res.responseText)
                  }
              })
          }
  