diff --git a/examples/routers/tree.vue b/examples/routers/tree.vue
index 727be4f..3d35722 100644
--- a/examples/routers/tree.vue
+++ b/examples/routers/tree.vue
@@ -94,16 +94,122 @@
 <!--</script>-->
 
 
+<!--<template>-->
+    <!--<div style="width: 400px;">-->
+        <!--<Tree :data="data4" :render="renderContent"></Tree>-->
+    <!--</div>-->
+<!--</template>-->
+<!--<script>-->
+    <!--export default {-->
+        <!--data () {-->
+            <!--return {-->
+                <!--data4: [-->
+                    <!--{-->
+                        <!--title: 'parent 1',-->
+                        <!--expand: true,-->
+                        <!--children: [-->
+                            <!--{-->
+                                <!--title: 'parent 1-1',-->
+                                <!--expand: true,-->
+                                <!--children: [-->
+                                    <!--{-->
+                                        <!--title: 'leaf 1-1-1',-->
+                                        <!--expand: true-->
+                                    <!--},-->
+                                    <!--{-->
+                                        <!--title: 'leaf 1-1-2',-->
+                                        <!--expand: true-->
+                                    <!--}-->
+                                <!--]-->
+                            <!--},-->
+                            <!--{-->
+                                <!--title: 'parent 1-2',-->
+                                <!--expand: true,-->
+                                <!--children: [-->
+                                    <!--{-->
+                                        <!--title: 'leaf 1-2-1',-->
+                                        <!--expand: true-->
+                                    <!--},-->
+                                    <!--{-->
+                                        <!--title: 'leaf 1-2-1',-->
+                                        <!--expand: true-->
+                                    <!--}-->
+                                <!--]-->
+                            <!--}-->
+                        <!--]-->
+                    <!--}-->
+                <!--],-->
+                <!--buttonProps: {-->
+                    <!--type: 'ghost',-->
+                    <!--size: 'small',-->
+                <!--}-->
+            <!--}-->
+        <!--},-->
+        <!--methods: {-->
+            <!--renderContent (h, { data, node, root }) {-->
+                <!--return h('span', {-->
+                    <!--style: {-->
+                        <!--display: 'inline-block',-->
+                        <!--width: '100%'-->
+                    <!--}-->
+                <!--}, [-->
+                    <!--h('span', data.title),-->
+                    <!--h('span', {-->
+                        <!--style: {-->
+                            <!--display: 'inline-block',-->
+                            <!--float: 'right',-->
+                            <!--marginRight: '32px'-->
+                        <!--}-->
+                    <!--}, [-->
+                        <!--h('Button', {-->
+                            <!--props: Object.assign({}, this.buttonProps, {-->
+                                <!--icon: 'ios-plus-empty'-->
+                            <!--}),-->
+                            <!--style: {-->
+                                <!--marginRight: '8px'-->
+                            <!--},-->
+                            <!--on: {-->
+                                <!--click: () => { this.append(data) }-->
+                            <!--}-->
+                        <!--}),-->
+                        <!--h('Button', {-->
+                            <!--props: Object.assign({}, this.buttonProps, {-->
+                                <!--icon: 'ios-minus-empty'-->
+                            <!--}),-->
+                            <!--on: {-->
+                                <!--click: () => { this.remove(node, data, root) }-->
+                            <!--}-->
+                        <!--})-->
+                    <!--])-->
+                <!--]);-->
+            <!--},-->
+            <!--append (data) {-->
+                <!--this.$set(data, 'children', [{-->
+                    <!--title: 'appended node',-->
+                    <!--expand: true-->
+                <!--}]);-->
+            <!--},-->
+            <!--remove (node, data, root) {-->
+                <!--const parentKey = root.find(el => el === node).parent;-->
+                <!--const parent = root.find(el => el.nodeKey === parentKey).node;-->
+                <!--const index = parent.children.indexOf(data);-->
+                <!--parent.children.splice(index, 1);-->
+            <!--}-->
+        <!--}-->
+    <!--}-->
+<!--</script>-->
+
 <template>
-    <div style="width: 400px;">
-        <Tree :data="data4" :render="renderContent"></Tree>
+    <div>
+        {{ data1 }}
+        <Tree :data="data1"></Tree>
     </div>
 </template>
 <script>
     export default {
         data () {
             return {
-                data4: [
+                data1: [
                     {
                         title: 'parent 1',
                         expand: true,
@@ -113,12 +219,10 @@
                                 expand: true,
                                 children: [
                                     {
-                                        title: 'leaf 1-1-1',
-                                        expand: true
+                                        title: 'leaf 1-1-1'
                                     },
                                     {
-                                        title: 'leaf 1-1-2',
-                                        expand: true
+                                        title: 'leaf 1-1-2'
                                     }
                                 ]
                             },
@@ -127,74 +231,17 @@
                                 expand: true,
                                 children: [
                                     {
-                                        title: 'leaf 1-2-1',
-                                        expand: true
+                                        title: 'leaf 1-2-1'
                                     },
                                     {
-                                        title: 'leaf 1-2-1',
-                                        expand: true
+                                        title: 'leaf 1-2-1'
                                     }
                                 ]
                             }
                         ]
                     }
-                ],
-                buttonProps: {
-                    type: 'ghost',
-                    size: 'small',
-                }
-            }
-        },
-        methods: {
-            renderContent (h, { data, node, root }) {
-                return h('span', {
-                    style: {
-                        display: 'inline-block',
-                        width: '100%'
-                    }
-                }, [
-                    h('span', data.title),
-                    h('span', {
-                        style: {
-                            display: 'inline-block',
-                            float: 'right',
-                            marginRight: '32px'
-                        }
-                    }, [
-                        h('Button', {
-                            props: Object.assign({}, this.buttonProps, {
-                                icon: 'ios-plus-empty'
-                            }),
-                            style: {
-                                marginRight: '8px'
-                            },
-                            on: {
-                                click: () => { this.append(data) }
-                            }
-                        }),
-                        h('Button', {
-                            props: Object.assign({}, this.buttonProps, {
-                                icon: 'ios-minus-empty'
-                            }),
-                            on: {
-                                click: () => { this.remove(node, data, root) }
-                            }
-                        })
-                    ])
-                ]);
-            },
-            append (data) {
-                this.$set(data, 'children', [{
-                    title: 'appended node',
-                    expand: true
-                }]);
-            },
-            remove (node, data, root) {
-                const parentKey = root.find(el => el === node).parent;
-                const parent = root.find(el => el.nodeKey === parentKey).node;
-                const index = parent.children.indexOf(data);
-                parent.children.splice(index, 1);
+                ]
             }
         }
     }
-</script>
\ No newline at end of file
+</script>
diff --git a/src/components/tree/tree.vue b/src/components/tree/tree.vue
index bf3d360..1da8e2f 100644
--- a/src/components/tree/tree.vue
+++ b/src/components/tree/tree.vue
@@ -147,9 +147,9 @@
             },
             handleSelect (nodeKey) {
                 const node = this.flatState[nodeKey].node;
-                if (!this.multiple){ // reset selected
+                if (!this.multiple){ // reset previously selected node
                     const currentSelectedKey = this.flatState.findIndex(obj => obj.node.selected);
-                    if (currentSelectedKey >= 0) this.$set(this.flatState[currentSelectedKey].node, 'selected', false);
+                    if (currentSelectedKey >= 0 && currentSelectedKey !== nodeKey) this.$set(this.flatState[currentSelectedKey].node, 'selected', false);
                 }
                 this.$set(node, 'selected', !node.selected);
 
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