diff --git a/changelog.md b/changelog.md
index a9e6ffbc7..03776318e 100644
--- a/changelog.md
+++ b/changelog.md
@@ -1,5 +1,6 @@
 # 更新日志
 2.0(2020-11)
+- store支持webworker,引入多线程机制
 - 修复了Popover小屏幕上看不完整的问题
 - 颜色选择器支持输入16进制颜色编号
 - bi.textarea_editor支持气泡提示报错
diff --git a/src/core/widget.js b/src/core/widget.js
index 85f9949fa..c5aeca499 100644
--- a/src/core/widget.js
+++ b/src/core/widget.js
@@ -11,7 +11,7 @@
         if (self[life]) {
             var hooks = BI.isArray(self[life]) ? self[life] : [self[life]];
             BI.each(hooks, function (i, hook) {
-                hook.apply(self);
+                hook.call(self);
             });
         }
     }
diff --git a/src/core/wrapper/layout.js b/src/core/wrapper/layout.js
index dc3b972b6..32f470242 100644
--- a/src/core/wrapper/layout.js
+++ b/src/core/wrapper/layout.js
@@ -83,7 +83,7 @@ BI.Layout = BI.inherit(BI.Widget, {
     },
 
     _getChildName: function (index) {
-        return this.getName() + "_" + index;
+        return "" + index;
     },
 
     _addElement: function (i, item, context) {
@@ -94,7 +94,7 @@ BI.Layout = BI.inherit(BI.Widget, {
                 BI.each(self._children, function (name, child) {
                     if (child === w) {
                         BI.remove(self._children, child);
-                        self.removeItemAt(name.replace(self.getName() + "_", "") | 0);
+                        self.removeItemAt(name | 0);
                     }
                 });
             });
@@ -568,7 +568,7 @@ BI.Layout = BI.inherit(BI.Widget, {
         if (BI.isWidget(nameOrWidget)) {
             BI.each(this._children, function (name, child) {
                 if (child === nameOrWidget) {
-                    removeIndex = name.replace(self.getName() + "_", "");
+                    removeIndex = name;
                 }
             });
         } else {
diff --git a/src/core/wrapper/layout/layout.card.js b/src/core/wrapper/layout/layout.card.js
index b44527270..f0133de6e 100644
--- a/src/core/wrapper/layout/layout.card.js
+++ b/src/core/wrapper/layout/layout.card.js
@@ -196,7 +196,7 @@ BI.CardLayout = BI.inherit(BI.Layout, {
         if (BI.isWidget(nameOrWidget)) {
             BI.each(this._children, function (name, child) {
                 if (child === nameOrWidget) {
-                    removeName = name.replace(self.getName() + "_", "");
+                    removeName = name;
                 }
             });
         } else {