diff --git a/jest.config.js b/jest.config.js
new file mode 100644
index 0000000..c72b2d2
--- /dev/null
+++ b/jest.config.js
@@ -0,0 +1,3 @@
+export default {
+  transform: {},
+};
diff --git a/package.json b/package.json
index 7c43092..5b04beb 100644
--- a/package.json
+++ b/package.json
@@ -5,12 +5,15 @@
   "description": "",
   "main": "index.js",
   "scripts": {
-    "test": "jest"
+    "test": "cross-env NODE_OPTIONS=--experimental-vm-modules jest"
   },
   "keywords": [],
   "author": "",
   "license": "ISC",
   "dependencies": {
     "jest": "^29.0.0"
+  },
+  "devDependencies": {
+    "cross-env": "^7.0.3"
   }
 }
diff --git a/test/index.spec.js b/test/index.spec.js
index 94eb243..bb1ac34 100644
--- a/test/index.spec.js
+++ b/test/index.spec.js
@@ -1,35 +1,41 @@
-const { elementOpen, text, elementEnd, currentInfo } = require('../vdom/vnodeBack.js');
+import { elementOpen, text, elementEnd, currentInfo } from "../vdom/vnode.js";
 
-describe('idom', () => {
-  test('校验idom结构', async () => {
-    elementOpen('div')
-    elementOpen('p')
-    text('1')
-    elementEnd('p')
-    text('2')
-    elementEnd('div')
-    var currentNode = currentInfo.currentNode
-    expect(JSON.stringify(currentNode)).toBe('{"tagName":"div","children":[{"tagName":"p","text":"1"}],"text":"2"}')
-  })
-})
+describe("idom", () => {
+  test("校验idom结构", async () => {
+    elementOpen("div");
+    elementOpen("p");
+    text("1");
+    elementEnd("p");
+    text("2");
+    elementEnd("div");
+    var currentNode = currentInfo.currentNode;
+    expect(JSON.stringify(currentNode)).toBe(
+      '{"tagName":"div","children":[{"tagName":"p","text":"1"}],"text":"2"}'
+    );
+  });
+});
 
-describe('idom2', () => {
-  test('重复调用的时候，生成结果独立互不影响', async () => {
-    elementOpen('div')
-    elementOpen('p')
-    text('1')
-    elementEnd('p')
-    text('2')
-    elementEnd('div')
-    var currentNode = currentInfo.currentNode
-    elementOpen('div')
-    elementOpen('p')
-    text('3')
-    elementEnd('p')
-    text('4')
-    elementEnd('div')
-    var currentNode2 = currentInfo.currentNode
-    expect(JSON.stringify(currentNode)).toBe('{"tagName":"div","children":[{"tagName":"p","text":"1"}],"text":"2"}')
-    expect(JSON.stringify(currentNode2)).toBe('{"tagName":"div","children":[{"tagName":"p","text":"3"}],"text":"4"}')
-  })
-})
\ No newline at end of file
+describe("idom2", () => {
+  test("重复调用的时候，生成结果独立互不影响", async () => {
+    elementOpen("div");
+    elementOpen("p");
+    text("1");
+    elementEnd("p");
+    text("2");
+    elementEnd("div");
+    var currentNode = currentInfo.currentNode;
+    elementOpen("div");
+    elementOpen("p");
+    text("3");
+    elementEnd("p");
+    text("4");
+    elementEnd("div");
+    var currentNode2 = currentInfo.currentNode;
+    expect(JSON.stringify(currentNode)).toBe(
+      '{"tagName":"div","children":[{"tagName":"p","text":"1"}],"text":"2"}'
+    );
+    expect(JSON.stringify(currentNode2)).toBe(
+      '{"tagName":"div","children":[{"tagName":"p","text":"3"}],"text":"4"}'
+    );
+  });
+});
diff --git a/vdom/vnode.js b/vdom/vnode.js
index 4839adb..64e22c2 100644
--- a/vdom/vnode.js
+++ b/vdom/vnode.js
@@ -4,24 +4,48 @@
 {"tagName":"div","children":[{"tagName":"p","text":"1"}],"text":"2"}
 */
 
-var currentInfo = {
-	currentNode: null,
-	currentParent: null
-}
-function elementOpen(tagName) {
-	// TODO
+export const currentInfo = {
+  currentNode: null,
+  currentParent: null,
+};
+
+// 添加 isOpen 状态后，代码可读性大大增强
+export function elementOpen(tagName) {
+  const { currentNode, currentParent } = currentInfo;
+
+  const newParent = currentNode?.isOpen ? currentNode : currentParent;
+  const newNode = { tagName, isOpen: true, parent: newParent };
+
+  if (newParent) {
+    newParent.children = [...(newParent?.children || []), newNode];
+  }
+
+  currentInfo.currentNode = newNode;
+  currentInfo.currentParent = newParent;
 }
 
-function text(textContent) {
-	// TODO
+export function text(textContent) {
+  if (!currentInfo.currentNode?.isOpen) {
+    return;
+  }
+
+  currentInfo.currentNode.text = textContent;
 }
 
-function elementEnd(tagName) {
-	// TODO
+export function elementEnd(tagName) {
+  const { currentNode, currentParent } = currentInfo;
+
+  if (currentNode.tagName !== tagName || !currentNode?.isOpen) {
+    return;
+  }
+
+  const nextNode = currentParent ? currentParent : currentNode;
+  const nextParent = nextNode.parent;
+
+  currentInfo.currentNode = nextNode;
+  currentInfo.currentParent = nextParent;
+
+  // 关闭节点后，节点不必保留父节点状态（可以从currentParent读取）和自身的 open 状态
+  delete currentNode.parent;
+  delete currentNode.isOpen;
 }
-module.exports = {
-	elementOpen,
-	text,
-	elementEnd,
-	currentInfo
-};
\ No newline at end of file