diff --git a/dist/base.css b/dist/base.css
index 2a8560251..0400f6ab9 100644
--- a/dist/base.css
+++ b/dist/base.css
@@ -2287,24 +2287,6 @@ ul.ztree.zTreeDragUL {
 .bi-list-view .list-view-toolbar > .first-element {
   border-left: none;
 }
-/****添加计算宽度的--运算符直接需要space****/
-/****** common color(常用颜色,可用于普遍场景) *****/
-/**** custom color(自定义颜色,用于特定场景) ****/
-.bi-scroll-view .scroll-container {
-  border-left: 1px solid #d4dadd;
-  border-right: 1px solid #d4dadd;
-  border-bottom: 1px solid #d4dadd;
-}
-.bi-scroll-view .scroll-drop-down-icon {
-  font-size: 14px;
-  border-bottom: 1px solid #d4dadd;
-  border-left: 1px solid #d4dadd;
-  border-right: 1px solid #d4dadd;
-  background: #f4f4f4;
-}
-.bi-scroll-view .scroll-drop-down-icon:active {
-  background: #d4dadd;
-}
 .bi-flex-center-layout {
   display: box;
   /* OLD - Android 4.4- */
diff --git a/dist/base.js b/dist/base.js
index 66653a559..345bc1725 100644
--- a/dist/base.js
+++ b/dist/base.js
@@ -15178,123 +15178,6 @@ BI.PopupView = BI.inherit(BI.Widget, {
 });
 BI.PopupView.EVENT_CHANGE = "EVENT_CHANGE";
 $.shortcut("bi.popup_view", BI.PopupView);/**
- * guy
- * @class BI.ScrollView
- * @extends BI.Widget
- */
-BI.ScrollView = BI.inherit(BI.Widget, {
-
-    _const: {
-        dropDownHeight: 15,
-        expandIcon: "column-next-page-h-font",
-        collapseIcon: "column-pre-page-h-font"
-    },
-
-    _defaultConfig: function() {
-        return BI.extend(BI.ScrollView.superclass._defaultConfig.apply(this, arguments), {
-            baseCls:"bi-scroll-view",
-            scrollHeight: 50,
-            maxHeight: 300
-        })
-    },
-
-    _init : function() {
-        BI.ScrollView.superclass._init.apply(this, arguments);
-
-        this.scrollUp = false;
-        this.scroll = BI.createWidget({
-            type: "bi.vertical",
-            cls: "scroll-container",
-            scrolly: true
-        })
-        BI.createWidget({
-            type: "bi.vertical",
-            element: this,
-            scrolly: false,
-            items: [this.scroll]
-        })
-
-        this.dropdown = BI.createWidget({
-            type: "bi.icon_button",
-            height: this._const.dropDownHeight,
-            cls: "scroll-drop-down-icon " + this._const.expandIcon,
-            handler: BI.bind(this._dropDownOrUp, this)
-        })
-
-        BI.createWidget({
-            type: "bi.absolute",
-            element: this,
-            items: [{
-                el: this.dropdown,
-                left: 0,
-                right: 0,
-                bottom: -1 * this._const.dropDownHeight
-            }]
-        })
-        this.populate(this.options.items);
-    },
-
-    _dropDownOrUp: function(){
-        if(!this.scrollUp){
-            var height = this.element.height();
-            height += this.options.scrollHeight;
-            height = Math.min(height, this.scroll.element[0].scrollHeight, this.options.maxHeight);
-            this.element.height(height);
-            this._checkDropDownState();
-        } else {
-            var height = this.element.height();
-            height -= this.options.scrollHeight;
-            height = Math.max(height, this.options.height);
-            this.element.height(height);
-            this._checkDropDownState();
-        }
-    },
-
-    _checkDropDownState: function(){
-        var height = this.element.height();
-        if(!this._checkScroll() || height >= this.options.maxHeight){
-            this.scrollUp = true;
-            this.dropdown.element.removeClass(this._const.expandIcon).addClass(this._const.collapseIcon);
-        } else if(height <= this.options.height){
-            this.scrollUp = false;
-            this.dropdown.element.addClass(this._const.expandIcon);
-        } else {
-            this.dropdown.element.addClass(this.scrollUp ? this._const.collapseIcon : this._const.expandIcon);
-        }
-    },
-
-    _checkScroll: function(){
-        this.scroll.element.height(this.element.height());
-        return this.scroll.element[0].scrollHeight > this.scroll.element[0].clientHeight;
-    },
-
-    _checkDropDown: function(){
-        if(this._checkScroll()){
-            this.dropdown.visible();
-            //this.scrollUp = false;
-            this._checkDropDownState();
-        } else {
-            this.dropdown.invisible();
-        }
-    },
-
-    populate: function(){
-        this.scroll.populate.apply(this.scroll, arguments);
-        this.resize();
-    },
-
-    resize: function(){
-        this.element.height(this.options.height);
-        BI.nextTick(BI.bind(this._checkDropDown, this));
-    },
-
-    addItem: function(){
-        this.scroll.addItem.apply(this.scroll, arguments);
-        BI.nextTick(BI.bind(this._checkDropDown, this));
-    }
-});
-
-$.shortcut("bi.scroll_view", BI.ScrollView);/**
  * 搜索面板
  *
  * Created by GUY on 2015/9/28.
diff --git a/dist/case.js b/dist/case.js
index 704fdb1e5..7ea957f9b 100644
--- a/dist/case.js
+++ b/dist/case.js
@@ -6165,124 +6165,6 @@ BI.SimpleStateEditor.EVENT_SPACE = "EVENT_SPACE";
 BI.SimpleStateEditor.EVENT_EMPTY = "EVENT_EMPTY";
 
 $.shortcut("bi.simple_state_editor", BI.SimpleStateEditor);/**
- * 倒立的Branch
- * @class BI.HandStandBranchExpander
- * @extend BI.Widget
- * create by young
- */
-BI.HandStandBranchExpander = BI.inherit(BI.Widget, {
-    _defaultConfig: function () {
-        return BI.extend(BI.HandStandBranchExpander.superclass._defaultConfig.apply(this, arguments), {
-            baseCls: "bi-handstand-branch-expander",
-            direction: BI.Direction.Top,
-            logic: {
-                dynamic: true
-            },
-            el: {type: "bi.label"},
-            popup: {}
-        })
-    },
-
-    _init: function () {
-        BI.HandStandBranchExpander.superclass._init.apply(this, arguments);
-        var o = this.options;
-        this._initExpander();
-        this._initBranchView();
-        BI.createWidget(BI.extend({
-            element: this
-        }, BI.LogicFactory.createLogic(BI.LogicFactory.createLogicTypeByDirection(o.direction), BI.extend({}, o.logic, {
-            items: BI.LogicFactory.createLogicItemsByDirection(o.direction, {
-                type: "bi.center_adapt",
-                items: [this.expander]
-            }, this.branchView)
-        }))));
-    },
-
-    _initExpander: function () {
-        var self = this, o = this.options;
-        this.expander = BI.createWidget(o.el);
-        this.expander.on(BI.Controller.EVENT_CHANGE, function () {
-            self.fireEvent(BI.Controller.EVENT_CHANGE, arguments);
-        });
-    },
-
-    _initBranchView: function () {
-        var self = this, o = this.options;
-        this.branchView = BI.createWidget(o.popup, {});
-        this.branchView.on(BI.Controller.EVENT_CHANGE, function () {
-            self.fireEvent(BI.Controller.EVENT_CHANGE, arguments);
-        });
-    },
-
-    populate: function (items) {
-        this.branchView.populate.apply(this.branchView, arguments);
-    },
-
-    getValue: function () {
-        return this.branchView.getValue();
-    }
-});
-BI.HandStandBranchExpander.EVENT_CHANGE = "EVENT_CHANGE";
-$.shortcut("bi.handstand_branch_expander", BI.HandStandBranchExpander);/**
- * @class BI.BranchExpander
- * @extend BI.Widget
- * create by young
- */
-BI.BranchExpander = BI.inherit(BI.Widget, {
-    _defaultConfig: function () {
-        return BI.extend(BI.BranchExpander.superclass._defaultConfig.apply(this, arguments), {
-            baseCls: "bi-branch-expander",
-            direction: BI.Direction.Left,
-            logic: {
-                dynamic: true
-            },
-            el: {},
-            popup: {}
-        })
-    },
-
-    _init: function () {
-        BI.BranchExpander.superclass._init.apply(this, arguments);
-        var o = this.options;
-        this._initExpander();
-        this._initBranchView();
-        BI.createWidget(BI.extend({
-            element: this
-        }, BI.LogicFactory.createLogic(BI.LogicFactory.createLogicTypeByDirection(o.direction), BI.extend({}, o.logic, {
-            items: BI.LogicFactory.createLogicItemsByDirection(o.direction, this.expander, this.branchView)
-        }))));
-    },
-
-    _initExpander: function () {
-        var self = this, o = this.options;
-        this.expander = BI.createWidget(o.el, {
-            type: "bi.label",
-            width: 30,
-            height: "100%"
-        });
-        this.expander.on(BI.Controller.EVENT_CHANGE, function () {
-            self.fireEvent(BI.Controller.EVENT_CHANGE, arguments);
-        });
-    },
-
-    _initBranchView: function () {
-        var self = this, o = this.options;
-        this.branchView = BI.createWidget(o.popup, {});
-        this.branchView.on(BI.Controller.EVENT_CHANGE, function () {
-            self.fireEvent(BI.Controller.EVENT_CHANGE, arguments);
-        });
-    },
-
-    populate: function (items) {
-        this.branchView.populate.apply(this.branchView, arguments);
-    },
-
-    getValue: function () {
-        return this.branchView.getValue();
-    }
-});
-BI.BranchExpander.EVENT_CHANGE = "EVENT_CHANGE";
-$.shortcut("bi.branch_expander", BI.BranchExpander);/**
  * 有确定取消按钮的弹出层
  * @class BI.BarFloatSection
  * @extends BI.FloatSection
@@ -10024,6 +9906,124 @@ BI.MultiSelectBar = BI.inherit(BI.BasicButton, {
 });
 BI.MultiSelectBar.EVENT_CHANGE = "MultiSelectBar.EVENT_CHANGE";
 $.shortcut("bi.multi_select_bar", BI.MultiSelectBar);/**
+ * 倒立的Branch
+ * @class BI.HandStandBranchExpander
+ * @extend BI.Widget
+ * create by young
+ */
+BI.HandStandBranchExpander = BI.inherit(BI.Widget, {
+    _defaultConfig: function () {
+        return BI.extend(BI.HandStandBranchExpander.superclass._defaultConfig.apply(this, arguments), {
+            baseCls: "bi-handstand-branch-expander",
+            direction: BI.Direction.Top,
+            logic: {
+                dynamic: true
+            },
+            el: {type: "bi.label"},
+            popup: {}
+        })
+    },
+
+    _init: function () {
+        BI.HandStandBranchExpander.superclass._init.apply(this, arguments);
+        var o = this.options;
+        this._initExpander();
+        this._initBranchView();
+        BI.createWidget(BI.extend({
+            element: this
+        }, BI.LogicFactory.createLogic(BI.LogicFactory.createLogicTypeByDirection(o.direction), BI.extend({}, o.logic, {
+            items: BI.LogicFactory.createLogicItemsByDirection(o.direction, {
+                type: "bi.center_adapt",
+                items: [this.expander]
+            }, this.branchView)
+        }))));
+    },
+
+    _initExpander: function () {
+        var self = this, o = this.options;
+        this.expander = BI.createWidget(o.el);
+        this.expander.on(BI.Controller.EVENT_CHANGE, function () {
+            self.fireEvent(BI.Controller.EVENT_CHANGE, arguments);
+        });
+    },
+
+    _initBranchView: function () {
+        var self = this, o = this.options;
+        this.branchView = BI.createWidget(o.popup, {});
+        this.branchView.on(BI.Controller.EVENT_CHANGE, function () {
+            self.fireEvent(BI.Controller.EVENT_CHANGE, arguments);
+        });
+    },
+
+    populate: function (items) {
+        this.branchView.populate.apply(this.branchView, arguments);
+    },
+
+    getValue: function () {
+        return this.branchView.getValue();
+    }
+});
+BI.HandStandBranchExpander.EVENT_CHANGE = "EVENT_CHANGE";
+$.shortcut("bi.handstand_branch_expander", BI.HandStandBranchExpander);/**
+ * @class BI.BranchExpander
+ * @extend BI.Widget
+ * create by young
+ */
+BI.BranchExpander = BI.inherit(BI.Widget, {
+    _defaultConfig: function () {
+        return BI.extend(BI.BranchExpander.superclass._defaultConfig.apply(this, arguments), {
+            baseCls: "bi-branch-expander",
+            direction: BI.Direction.Left,
+            logic: {
+                dynamic: true
+            },
+            el: {},
+            popup: {}
+        })
+    },
+
+    _init: function () {
+        BI.BranchExpander.superclass._init.apply(this, arguments);
+        var o = this.options;
+        this._initExpander();
+        this._initBranchView();
+        BI.createWidget(BI.extend({
+            element: this
+        }, BI.LogicFactory.createLogic(BI.LogicFactory.createLogicTypeByDirection(o.direction), BI.extend({}, o.logic, {
+            items: BI.LogicFactory.createLogicItemsByDirection(o.direction, this.expander, this.branchView)
+        }))));
+    },
+
+    _initExpander: function () {
+        var self = this, o = this.options;
+        this.expander = BI.createWidget(o.el, {
+            type: "bi.label",
+            width: 30,
+            height: "100%"
+        });
+        this.expander.on(BI.Controller.EVENT_CHANGE, function () {
+            self.fireEvent(BI.Controller.EVENT_CHANGE, arguments);
+        });
+    },
+
+    _initBranchView: function () {
+        var self = this, o = this.options;
+        this.branchView = BI.createWidget(o.popup, {});
+        this.branchView.on(BI.Controller.EVENT_CHANGE, function () {
+            self.fireEvent(BI.Controller.EVENT_CHANGE, arguments);
+        });
+    },
+
+    populate: function (items) {
+        this.branchView.populate.apply(this.branchView, arguments);
+    },
+
+    getValue: function () {
+        return this.branchView.getValue();
+    }
+});
+BI.BranchExpander.EVENT_CHANGE = "EVENT_CHANGE";
+$.shortcut("bi.branch_expander", BI.BranchExpander);/**
  * @class BI.HandStandBranchTree
  * @extends BI.Widget
  * create by young
diff --git a/src/base/layer/layer.scroll.js b/src/base/layer/layer.scroll.js
deleted file mode 100644
index 01fe2652f..000000000
--- a/src/base/layer/layer.scroll.js
+++ /dev/null
@@ -1,118 +0,0 @@
-/**
- * guy
- * @class BI.ScrollView
- * @extends BI.Widget
- */
-BI.ScrollView = BI.inherit(BI.Widget, {
-
-    _const: {
-        dropDownHeight: 15,
-        expandIcon: "column-next-page-h-font",
-        collapseIcon: "column-pre-page-h-font"
-    },
-
-    _defaultConfig: function() {
-        return BI.extend(BI.ScrollView.superclass._defaultConfig.apply(this, arguments), {
-            baseCls:"bi-scroll-view",
-            scrollHeight: 50,
-            maxHeight: 300
-        })
-    },
-
-    _init : function() {
-        BI.ScrollView.superclass._init.apply(this, arguments);
-
-        this.scrollUp = false;
-        this.scroll = BI.createWidget({
-            type: "bi.vertical",
-            cls: "scroll-container",
-            scrolly: true
-        })
-        BI.createWidget({
-            type: "bi.vertical",
-            element: this,
-            scrolly: false,
-            items: [this.scroll]
-        })
-
-        this.dropdown = BI.createWidget({
-            type: "bi.icon_button",
-            height: this._const.dropDownHeight,
-            cls: "scroll-drop-down-icon " + this._const.expandIcon,
-            handler: BI.bind(this._dropDownOrUp, this)
-        })
-
-        BI.createWidget({
-            type: "bi.absolute",
-            element: this,
-            items: [{
-                el: this.dropdown,
-                left: 0,
-                right: 0,
-                bottom: -1 * this._const.dropDownHeight
-            }]
-        })
-        this.populate(this.options.items);
-    },
-
-    _dropDownOrUp: function(){
-        if(!this.scrollUp){
-            var height = this.element.height();
-            height += this.options.scrollHeight;
-            height = Math.min(height, this.scroll.element[0].scrollHeight, this.options.maxHeight);
-            this.element.height(height);
-            this._checkDropDownState();
-        } else {
-            var height = this.element.height();
-            height -= this.options.scrollHeight;
-            height = Math.max(height, this.options.height);
-            this.element.height(height);
-            this._checkDropDownState();
-        }
-    },
-
-    _checkDropDownState: function(){
-        var height = this.element.height();
-        if(!this._checkScroll() || height >= this.options.maxHeight){
-            this.scrollUp = true;
-            this.dropdown.element.removeClass(this._const.expandIcon).addClass(this._const.collapseIcon);
-        } else if(height <= this.options.height){
-            this.scrollUp = false;
-            this.dropdown.element.addClass(this._const.expandIcon);
-        } else {
-            this.dropdown.element.addClass(this.scrollUp ? this._const.collapseIcon : this._const.expandIcon);
-        }
-    },
-
-    _checkScroll: function(){
-        this.scroll.element.height(this.element.height());
-        return this.scroll.element[0].scrollHeight > this.scroll.element[0].clientHeight;
-    },
-
-    _checkDropDown: function(){
-        if(this._checkScroll()){
-            this.dropdown.visible();
-            //this.scrollUp = false;
-            this._checkDropDownState();
-        } else {
-            this.dropdown.invisible();
-        }
-    },
-
-    populate: function(){
-        this.scroll.populate.apply(this.scroll, arguments);
-        this.resize();
-    },
-
-    resize: function(){
-        this.element.height(this.options.height);
-        BI.nextTick(BI.bind(this._checkDropDown, this));
-    },
-
-    addItem: function(){
-        this.scroll.addItem.apply(this.scroll, arguments);
-        BI.nextTick(BI.bind(this._checkDropDown, this));
-    }
-});
-
-$.shortcut("bi.scroll_view", BI.ScrollView);
\ No newline at end of file
diff --git a/src/case/expander/expander.branch.handstand.js b/src/case/tree/expander/expander.branch.handstand.js
similarity index 100%
rename from src/case/expander/expander.branch.handstand.js
rename to src/case/tree/expander/expander.branch.handstand.js
diff --git a/src/case/expander/expander.branch.js b/src/case/tree/expander/expander.branch.js
similarity index 100%
rename from src/case/expander/expander.branch.js
rename to src/case/tree/expander/expander.branch.js
diff --git a/src/css/base/view/scrollview.css b/src/css/base/view/scrollview.css
deleted file mode 100644
index 151b8a0fb..000000000
--- a/src/css/base/view/scrollview.css
+++ /dev/null
@@ -1,18 +0,0 @@
-/****添加计算宽度的--运算符直接需要space****/
-/****** common color(常用颜色,可用于普遍场景) *****/
-/**** custom color(自定义颜色,用于特定场景) ****/
-.bi-scroll-view .scroll-container {
-  border-left: 1px solid #d4dadd;
-  border-right: 1px solid #d4dadd;
-  border-bottom: 1px solid #d4dadd;
-}
-.bi-scroll-view .scroll-drop-down-icon {
-  font-size: 14px;
-  border-bottom: 1px solid #d4dadd;
-  border-left: 1px solid #d4dadd;
-  border-right: 1px solid #d4dadd;
-  background: #f4f4f4;
-}
-.bi-scroll-view .scroll-drop-down-icon:active {
-  background: #d4dadd;
-}
diff --git a/src/less/base/logintimeout/login.timeout.less b/src/less/base/logintimeout/login.timeout.less
deleted file mode 100644
index ebfa99736..000000000
--- a/src/less/base/logintimeout/login.timeout.less
+++ /dev/null
@@ -1,30 +0,0 @@
-@import "../../bibase";
-.bi-login-timeout-center{
-  & .input-wrapper{
-    border-bottom: 1px solid @color-bi-border-line;
-    & .login-input{
-      font-size: @font-size-16;
-    }
-    & .error-mask{
-      background: @color-bi-background-black;
-      .opacity(0.25);
-      color: @color-bi-text;
-      font-size: @font-size-16;
-    }
-  }
-  & .login-button{
-    background: @color-bi-background-highlight;
-    .border-radius(25px);
-    font-size: @font-size-22;
-    color: @color-bi-text;
-    &:hover{
-      .opacity(0.8);
-    }
-  }
-}
-.bi-login-timeout-south{
-  & .keep-state{
-    font-size: @font-size-14;
-    color: @color-bi-text-gray;
-  }
-}
\ No newline at end of file
diff --git a/src/less/base/reqloading/loading.request.less b/src/less/base/reqloading/loading.request.less
deleted file mode 100644
index ea2affda2..000000000
--- a/src/less/base/reqloading/loading.request.less
+++ /dev/null
@@ -1,20 +0,0 @@
-@import "../../bibase";
-
-.bi-request-loading {
-  & .mask-pane {
-    background: @color-bi-background-default;
-    .opacity(0.8);
-  }
-  & .loading-comment {
-    font-size: 20px;
-    color: @color-bi-text-gray;
-  }
-  & .load-fail-comment {
-    font-size: 20px;
-    color: @color-bi-text-gray;
-  }
-  & .load-timeout-warning {
-    font-size: @font-size-16;
-    color: @color-bi-text-warning;
-  }
-}
\ No newline at end of file
diff --git a/src/less/base/timeouttoast/widget.timeouttoast.less b/src/less/base/timeouttoast/widget.timeouttoast.less
deleted file mode 100644
index b9447cd36..000000000
--- a/src/less/base/timeouttoast/widget.timeouttoast.less
+++ /dev/null
@@ -1,25 +0,0 @@
-@import "../../bibase";
-
-.bi-timeout-toast {
-  font-size: @font-size-14;
-  .border-radius(2px);
-  background: @color-bi-tip-warning-background;
-  color: @color-bi-text-warning;
-  & .cancel-button {
-    background: @color-bi-background-default;
-    border: 1px solid @color-bi-border-normal;
-    color: @color-bi-text-black;
-    .border-radius(2px);
-    &:hover {
-      .opacity(0.8);
-    }
-  }
-  & .retry-button {
-    background: @color-bi-background-highlight;
-    .border-radius(2px);
-    color: @color-bi-text;
-    &:hover {
-      .opacity(0.8);
-    }
-  }
-}
\ No newline at end of file
diff --git a/src/less/base/view/scrollview.less b/src/less/base/view/scrollview.less
deleted file mode 100644
index 666adb59f..000000000
--- a/src/less/base/view/scrollview.less
+++ /dev/null
@@ -1,19 +0,0 @@
-@import "../../bibase";
-
-.bi-scroll-view{
-  .scroll-container{
-    border-left: 1px solid @color-bi-split-dark;
-    border-right: 1px solid @color-bi-split-dark;
-    border-bottom: 1px solid @color-bi-split-dark;
-  }
-  & .scroll-drop-down-icon{
-    font-size: @font-size-14;
-    border-bottom: 1px solid @color-bi-split-dark;
-    border-left: 1px solid @color-bi-split-dark;
-    border-right: 1px solid @color-bi-split-dark;
-    background: @color-bi-background-gray;
-    &:active{
-      background: @color-bi-background-dark;
-    }
-  }
-}
\ No newline at end of file