diff --git a/src/components/func/geetest.ts b/src/components/func/geetest.ts
index e8f398e8..4961711d 100644
--- a/src/components/func/geetest.ts
+++ b/src/components/func/geetest.ts
@@ -4,12 +4,26 @@
  * @since Beta v0.3.3
  */
 
-import { h, render, type VNode } from "vue";
+import { h, render } from "vue";
+import type { ComponentInternalInstance, VNode } from "vue";
 
 import geetest from "./geetest.vue";
 
 const geetestId = "tg-func-geetest";
 
+/**
+ * @description 自定义 geetest 组件
+ * @since Beta v0.3.3
+ * @extends ComponentInternalInstance
+ * @property {Function} exposeProxy.displayBox 弹出 geetest 验证
+ * @return GeetestInstance
+ */
+interface GeetestInstance extends ComponentInternalInstance {
+  exposeProxy: {
+    displayBox: () => boolean;
+  };
+}
+
 const renderBox = (): VNode => {
   const container = document.createElement("div");
   container.id = geetestId;
@@ -21,14 +35,14 @@ const renderBox = (): VNode => {
 
 let geetestInstance: VNode;
 
-const showGeetest = async (): Promise<boolean> => {
+async function showGeetest(): Promise<boolean> {
   if (geetestInstance !== undefined) {
-    const boxVue = geetestInstance.component;
-    return boxVue?.exposeProxy?.displayBox();
+    const boxVue = <GeetestInstance>geetestInstance.component;
+    return boxVue.exposeProxy.displayBox();
   } else {
     geetestInstance = renderBox();
     return await showGeetest();
   }
-};
+}
 
 export default showGeetest;
diff --git a/src/components/func/snackbar.ts b/src/components/func/snackbar.ts
index 73198524..161e84d5 100644
--- a/src/components/func/snackbar.ts
+++ b/src/components/func/snackbar.ts
@@ -4,12 +4,26 @@
  * @since Beta v0.3.3
  */
 
-import { h, render, type VNode } from "vue";
+import type { ComponentInternalInstance, VNode } from "vue";
+import { h, render } from "vue";
 
 import snackbar from "./snackbar.vue";
 
 const snackbarId = "tg-func-snackbar";
 
+/**
+ * @description 自定义 snackbar 组件
+ * @since Beta v0.3.3
+ * @extends ComponentInternalInstance
+ * @property {Function} exposeProxy.displayBox 显示 snackbar
+ * @return SnackbarInstance
+ */
+interface SnackbarInstance extends ComponentInternalInstance {
+  exposeProxy: {
+    displayBox: typeof TGApp.Component.Snackbar.displayBox;
+  };
+}
+
 const renderBox = (props: TGApp.Component.Snackbar.Params): VNode => {
   const container = document.createElement("div");
   container.id = snackbarId;
@@ -21,14 +35,14 @@ const renderBox = (props: TGApp.Component.Snackbar.Params): VNode => {
 
 let snackbarInstance: VNode;
 
-const showSnackbar = (props: TGApp.Component.Snackbar.Params): void => {
+function showSnackbar(props: TGApp.Component.Snackbar.Params): void {
   if (snackbarInstance !== undefined) {
-    const boxVue = snackbarInstance.component;
-    boxVue?.exposeProxy?.displayBox(props);
+    const boxVue = <SnackbarInstance>snackbarInstance.component;
+    boxVue.exposeProxy.displayBox(props);
   } else {
     snackbarInstance = renderBox(props);
     showSnackbar(props);
   }
-};
+}
 
 export default showSnackbar;
diff --git a/src/components/func/snackbar.vue b/src/components/func/snackbar.vue
index c61b50ce..d25f4c79 100644
--- a/src/components/func/snackbar.vue
+++ b/src/components/func/snackbar.vue
@@ -8,16 +8,9 @@
   </transition>
 </template>
 <script lang="ts" setup>
-// vue
 import { ref, reactive, onMounted } from "vue";
 
-interface SnackbarProps {
-  text: string;
-  color?: string;
-  timeout?: number;
-}
-
-const props = withDefaults(defineProps<SnackbarProps>(), {
+const props = withDefaults(defineProps<TGApp.Component.Snackbar.Params>(), {
   text: "",
   color: "success",
   timeout: 1500,
diff --git a/src/types/Component/Snackbar.d.ts b/src/types/Component/Snackbar.d.ts
index eb5d360f..fa90b647 100644
--- a/src/types/Component/Snackbar.d.ts
+++ b/src/types/Component/Snackbar.d.ts
@@ -1,8 +1,7 @@
 /**
  * @file types Component Snackbar.d.ts
  * @description Component Snackbar 类型声明文件
- * @author BTMuli <bt-muli@outlook.com>
- * @since Alpha v0.2.3
+ * @since Beta v0.3.3
  */
 
 declare namespace TGApp.Component.Snackbar {
@@ -16,9 +15,18 @@ declare namespace TGApp.Component.Snackbar {
    * @property {boolean} show 是否显示
    * @return Params
    */
-  export interface Params {
+  interface Params {
     text: string;
     color?: string;
     timeout?: number;
   }
+
+  /**
+   * @description Snackbar 方法 - displayBox
+   * @since Beta v0.3.3
+   * @function displayBox
+   * @param {Params} props
+   * @return void
+   */
+  function displayBox(props: Params): void;
 }