diff --git a/demo/less/main.less b/demo/less/main.less
index 2e6c8ff61..87a094414 100644
--- a/demo/less/main.less
+++ b/demo/less/main.less
@@ -63,6 +63,7 @@ body {
   right: 0;
   top: 0;
   bottom: 0;
+  font-size: 1.2rem;
 }
 
 .bi-theme-dark body {
@@ -98,4 +99,4 @@ body {
 
 .bi-progress-bar-bar {
   border-radius: 2rem;
-}
\ No newline at end of file
+}
diff --git a/package.json b/package.json
index 92dc5ff2c..b1083bcdc 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "fineui",
-  "version": "2.0.20221014104548",
+  "version": "2.0.20221017122609",
   "description": "fineui",
   "main": "dist/fineui_without_conflict.min.js",
   "types": "dist/lib/index.d.ts",
diff --git a/src/base/single/0.single.js b/src/base/single/0.single.js
index e271cb5ad..93705ca91 100644
--- a/src/base/single/0.single.js
+++ b/src/base/single/0.single.js
@@ -67,6 +67,10 @@ BI.Single = BI.inherit(BI.Widget, {
             self.setValue(newValue);
         }) : o.value;
         BI.Single.superclass._init.apply(this, arguments);
+    },
+
+    _mounted: function () {
+        var o = this.options;
         if (o.enableHover || BI.isKey(o.title) || BI.isKey(o.warningTitle)
             || BI.isFunction(o.title) || BI.isFunction(o.warningTitle)) {
             this.enableHover({
@@ -91,7 +95,7 @@ BI.Single = BI.inherit(BI.Widget, {
         opt || (opt = {});
         var self = this;
         if (!this._hoverBinded) {
-            this.element.on("mouseenter.title" + this.getName(), function (e) {
+            this.element.unbind("mouseenter.title").on("mouseenter.title", function (e) {
                 self._e = e;
                 if (self.getTipType() === "warning" || (BI.isKey(self.getWarningTitle()) && !self.isEnabled())) {
                     delayingTooltips = self.getName();
@@ -109,7 +113,7 @@ BI.Single = BI.inherit(BI.Widget, {
                     }, 500);
                 }
             });
-            this.element.on("mousemove.title" + this.getName(), function (e) {
+            this.element.unbind("mousemove.title").on("mousemove.title", function (e) {
                 self._e = e;
                 if (BI.isNotNull(self.showTimeout)) {
                     clearTimeout(self.showTimeout);
@@ -138,7 +142,7 @@ BI.Single = BI.inherit(BI.Widget, {
                     }
                 }, 500);
             });
-            this.element.on("mouseleave.title" + this.getName(), function (e) {
+            this.element.unbind("mouseleave.title").on("mouseleave.title", function (e) {
                 self._e = null;
                 self._clearTimeOut();
                 self._hideTooltip();
@@ -151,9 +155,9 @@ BI.Single = BI.inherit(BI.Widget, {
         // 取消hover事件
         this._clearTimeOut();
         this._hideTooltip();
-        this.element.unbind("mouseenter.title" + this.getName())
-            .unbind("mousemove.title" + this.getName())
-            .unbind("mouseleave.title" + this.getName());
+        this.element.unbind("mouseenter.title")
+            .unbind("mousemove.title")
+            .unbind("mouseleave.title");
         this._hoverBinded = false;
     },
 
@@ -217,8 +221,7 @@ BI.Single = BI.inherit(BI.Widget, {
         return this.options.value;
     },
 
-    __d: function () {
-        BI.Single.superclass.__d.call(this);
+    _destroyed: function () {
         if (BI.isNotNull(this.showTimeout)) {
             clearTimeout(this.showTimeout);
             this.showTimeout = null;
diff --git a/src/core/3.ob.js b/src/core/3.ob.js
index 9cf8fd3f9..a9019c3a8 100644
--- a/src/core/3.ob.js
+++ b/src/core/3.ob.js
@@ -79,23 +79,25 @@
 
         // 获得一个当前对象的引用
         _initRef: function () {
-            if (this.options.__ref) {
-                this.options.__ref.call(this, this);
+            var o = this.options;
+            if (o.__ref) {
+                BI.isFunction(o.__ref) ? o.__ref.call(this, this) : o.__ref.current = this;
             }
-            if (this.options.ref) {
-                this.options.ref.call(this, this);
+            if (o.ref) {
+                BI.isFunction(o.ref) ? o.ref.call(this, this) : o.ref.current = this;
             }
         },
 
         //释放当前对象
         _purgeRef: function () {
-            if (this.options.__ref) {
-                this.options.__ref.call(null, null);
-                this.options.__ref = null;
+            var o = this.options;
+            if (o.__ref) {
+                BI.isFunction(o.__ref) ? o.__ref.call(null, null) : o.__ref.current = null;
+                o.__ref = null;
             }
-            if (this.options.ref) {
-                this.options.ref.call(null, null);
-                this.options.ref = null;
+            if (o.ref) {
+                BI.isFunction(o.ref) ? o.ref.call(null, null) : o.ref.current = null;
+                o.ref = null;
             }
         },
 
diff --git a/src/core/4.widget.js b/src/core/4.widget.js
index 3c28a3976..5af118dd5 100644
--- a/src/core/4.widget.js
+++ b/src/core/4.widget.js
@@ -97,6 +97,8 @@
         beforeMount: null,
 
         mounted: null,
+        // 不想重写mounted时用
+        _mounted: null,
 
         shouldUpdate: null,
 
@@ -109,6 +111,8 @@
         beforeDestroy: null,
 
         destroyed: null,
+        // 不想重写destroyed时用
+        _destroyed: null,
 
         _init: function () {
             BI.Widget.superclass._init.apply(this, arguments);
@@ -429,6 +433,7 @@
                     child.__afterMount && child.__afterMount(lifeHook, predicate);
                 }
                 if (lifeHook !== false && !this.__async) {
+                    callLifeHook(this, "_mounted");
                     callLifeHook(this, "mounted");
                     this.fireEvent(BI.Events.MOUNT);
                 }
@@ -736,6 +741,7 @@
             this.__d();
             this._parent = null;
             this._isMounted = false;
+            callLifeHook(this, "_destroyed");
             callLifeHook(this, "destroyed");
             this.destroyed = null;
             this._isDestroyed = true;