update Tree

update Tree（in Vue 2，can not use this.xxx in template’s prop,just xxx）

test/routers/tree.vue

@@ -1,5 +1,8 @@
 <template>
-    <Tree v-model="baseData" show-checkbox></Tree>
+    <div>
+        <Tree :data="baseData" show-checkbox></Tree>
+        <div @click="c">change</div>
+    </div>
 </template>
 <script>
     export default {
@@ -28,6 +31,11 @@
                     }]
                 }]
             }
+        },
+        methods: {
+            c () {
+                this.baseData[0].expand = false;
+            }
         }
     }
 </script>