feat: 新增data-key赋值设定

src/lib/XMLProcessor/src/core/Processing.ts

@@ -81,7 +81,10 @@ export class Processing {
     private innerHandle(domNode: Element, handledNode: string[]): TreeRenderResult[] {
         let treeData: TreeRenderResult[] = [];
         // 生成唯一的 key
-        const targetKey = 'g-' + UUID.generate();
+        let targetKey = domNode.getAttribute('data-key');
+        if (!targetKey) {
+            targetKey = 'g-' + UUID.generate()
+        }
         // 创建树形数据项
         const treeItem: TreeRenderResult = {
             key: targetKey,
@@ -119,7 +122,10 @@ export class Processing {
             }
             realIndex++;
             // 生成唯一的 key
-            const targetKey ='g-' + UUID.generate();
+            let targetKey = node.getAttribute('data-key');
+            if (!targetKey) {
+                targetKey = 'g-' + UUID.generate()
+            }
             // 创建树形数据项
             const treeItem: TreeRenderResult = {
                 key: targetKey,