feat: 增加根据选中节点功能

src/Model/modelConstructor.ts

@@ -268,7 +268,6 @@ export class ModelConstructor {
         element.sourceElement = sourceElement;
         // 处理element的index文本
         this.resolveElementIndex(element.get('indexCfg'), sourceElement);
-        console.log(element.get('indexCfg'));
 
         return element;
     }

src/engine.ts

@@ -199,6 +199,21 @@ export class Engine {
         });
     }
 
+    /**
+     * 使用id选中某个节点
+     * @param id 
+     * @param callback 
+     */
+    public selectElement(id: string, callback?: (element: Element) => void) {
+        const elements = this.getElements();
+        const stringId = id.toString();
+        const targetElement = elements.find(item => item.sourceId === stringId);
+
+        if(targetElement) {
+            callback && callback(targetElement);
+        }
+    }
+
     /**
      * 调整容器尺寸
      * @param containerName