diff --git a/packages/shared/src/index.ts b/packages/shared/src/index.ts
index c61acce..480fe58 100644
--- a/packages/shared/src/index.ts
+++ b/packages/shared/src/index.ts
@@ -5,9 +5,7 @@ export const isObject = (val: unknown) =>
   val !== null && typeof val === 'object'
 
 /**
- * 对比两个数据是否发生改变
- * @param value
- * @param oldValue
+ * 对比两个数据是否发生改变, 如果发生改变则返回true
  */
 export const hasChanged = (value: any, oldValue: any): boolean =>
   !Object.is(value, oldValue)
diff --git a/packages/vue/examples/reactivity/ref-shallow.html b/packages/vue/examples/reactivity/ref-shallow.html
new file mode 100644
index 0000000..f6fbb38
--- /dev/null
+++ b/packages/vue/examples/reactivity/ref-shallow.html
@@ -0,0 +1,21 @@
+<html lang="en">
+<head>
+  <meta charset="UTF-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1">
+  <title>Document</title>
+  <script src="../../dist/vue.js"></script>
+</head>
+<body>
+<div id="app"></div>
+</body>
+<script>
+  const { ref,effect } = Vue
+  const obj=ref('张三')
+  effect(()=>{
+    document.querySelector('#app').innerText=obj.value
+  })
+  setTimeout(()=>{
+    obj.value='李四'
+  },2000)
+</script>
+</html>
\ No newline at end of file
diff --git a/packages/vue/examples/reactivity/ref.html b/packages/vue/examples/reactivity/ref.html
index 628e290..845e3b4 100644
--- a/packages/vue/examples/reactivity/ref.html
+++ b/packages/vue/examples/reactivity/ref.html
@@ -9,16 +9,15 @@
 <div id="app"></div>
 </body>
 <script>
-    const { reactive,effect } = Vue
-    const obj=reactive({
+    const { ref,effect } = Vue
+    const obj=ref({
         name:'张三'
     })
-
     effect(()=>{
-        document.querySelector('#app').innerText=name
+        document.querySelector('#app').innerText=obj.value.name
     })
     setTimeout(()=>{
-        obj.name='李四'
+        obj.value.name='李四'
     },2000)
 </script>
 </html>
\ No newline at end of file
