atinc
diff --git a/‎src/tree/test/tree.spec.ts
Lines changed: 6 additions & 1 deletion b/‎src/tree/test/tree.spec.ts
Lines changed: 6 additions & 1 deletion
diff --git a/‎src/tree/tree-node.component.ts
Lines changed: 5 additions & 1 deletion b/‎src/tree/tree-node.component.ts
Lines changed: 5 additions & 1 deletion
diff --git a/‎src/tree/tree.component.ts
Lines changed: 9 additions & 0 deletions b/‎src/tree/tree.component.ts
Lines changed: 9 additions & 0 deletions
@@ -54,6 +54,11 @@ describe('ThyTreeComponent', () => {
             expect(treeElement.querySelector('.thy-tree-expand-icon').classList).toContain('thy-icon-plus-square');
         });
 
+        it('test set selectedKeys correctly', () => {
+            expect(treeComponent.getSelectedNodes().length).toEqual(1);
+            expect(treeComponent.getSelectedNode().title).toEqual('未分配部门');
+        });
+
         it(`test public function 'getRootNodes()`, () => {
             expect(treeComponent.getRootNodes().length).toEqual(2);
         });
@@ -66,7 +71,6 @@ describe('ThyTreeComponent', () => {
         });
 
         it(`test public function 'getSelectedNodes()`, () => {
-            expect(treeComponent.getSelectedNodes().length).toEqual(0);
             treeComponent.selectTreeNode(treeComponent.getRootNodes()[1]);
             fixture.detectChanges();
             expect(treeComponent.getSelectedNodes().length).toEqual(1);
@@ -158,6 +162,7 @@ describe('ThyTreeComponent', () => {
             [thyDraggable]="options.draggable"
      
8000
       [thyCheckable]="options.checkable"
             [thyMultiple]="options.multiple"
+            [thySelectedKeys]="['000000000000000000000000']"
             [thyShowExpand]="true"
             [thyBeforeDragDrop]="beforeDragDrop"
             (thyOnDragDrop)="onEvent()"
 
@@ -99,7 +99,11 @@ export class ThyTreeNodeComponent implements OnDestroy {
     }
 
     public clickNode(event: Event) {
-        this.root.toggleTreeNode(this.node);
+        if (!this.root.thyMultiple) {
+            this.root.selectTreeNode(this.node);
+        } else {
+            this.root.toggleTreeNode(this.node);
+        }
         this.thyOnClick.emit({
             eventName: 'click',
             event: event,
 
@@ -102,6 +102,8 @@ export class ThyTreeComponent implements ControlValueAccessor, OnInit, OnChanges
 
     @Input() thyTitleTruncate = true;
 
+    @Input() thySelectedKeys: string[];
+
     @Input() thyBeforeDragStart: (e: ThyDragStartEvent) => boolean;
 
     @Input() thyBeforeDragDrop: (e: ThyDragDropEvent) => boolean;
@@ -169,6 +171,7 @@ export class ThyTreeComponent implements ControlValueAccessor, OnInit, OnChanges
         this._setTreeType();
         this._setTreeSize();
         this._instanceSelectionModel();
+        this._setDefaultSelectedKeys();
     }
 
     private _setTreeType() {
@@ -187,6 +190,12 @@ export class ThyTreeComponent implements ControlValueAccessor, OnInit, OnChanges
         this._selectionModel = new SelectionModel<any>(this.thyMultiple);
     }
 
+    private _setDefaultSelectedKeys() {
+        (this.thySelectedKeys || []).forEach(key => {
+            this.selectTreeNode(this.thyTreeService.getTreeNode(key));
+        });
+    }
+
     public isSelected(node: ThyTreeNode) {
         return this._selectionModel.isSelected(node);
     }