diff --git a/src/app.ts b/src/app.ts
index a6355ef..3e020ab 100644
--- a/src/app.ts
+++ b/src/app.ts
@@ -6,6 +6,7 @@ import './app.css'
 function App({ children }: PropsWithChildren<any>) {
   useLaunch(() => {
     console.log('App launched.')
+
   })
 
   // children 是将要会渲染的页面
diff --git a/src/components/DownloadSection/index.css b/src/components/DownloadSection/index.css
index 8462c72..c418c0d 100644
--- a/src/components/DownloadSection/index.css
+++ b/src/components/DownloadSection/index.css
@@ -42,6 +42,27 @@
   opacity: 1;
 }
 
+.regenerate-btn {
+  width: 80%;
+  height: 100rpx;
+  background: linear-gradient(45deg, #52c41a, #73d13d);
+  color: white;
+  border: none;
+  border-radius: 50rpx;
+  font-size: 32rpx;
+  font-weight: bold;
+  margin-bottom: 20rpx;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  cursor: pointer;
+  transition: opacity 0.2s;
+}
+
+.regenerate-btn:active {
+  opacity: 0.8;
+}
+
 .download-tip {
   color: #fff;
   font-size: 24rpx;
diff --git a/src/components/DownloadSection/index.tsx b/src/components/DownloadSection/index.tsx
index 43deeca..66774d9 100644
--- a/src/components/DownloadSection/index.tsx
+++ b/src/components/DownloadSection/index.tsx
@@ -4,10 +4,11 @@ import './index.css'
 
 interface DownloadSectionProps {
   onDownload: () => void
+  onRegenerate?: () => void
   loading: boolean
 }
 
-const DownloadSection: React.FC<DownloadSectionProps> = memo(({ onDownload, loading }) => {
+const DownloadSection: React.FC<DownloadSectionProps> = memo(({ onDownload, onRegenerate, loading }) => {
   return (
     <View className="download-section">
       <View 
@@ -16,6 +17,11 @@ const DownloadSection: React.FC<DownloadSectionProps> = memo(({ onDownload, load
       >
         <Text>{loading ? '广告加载中...' : '📱 看广告下载到相册'}</Text>
       </View>
+      {onRegenerate && (
+        <View className="regenerate-btn" onClick={onRegenerate}>
+          <Text>🎨 再来一张</Text>
+        </View>
+      )}
       <Text className="download-tip">观看完整广告即可免费下载所有图片</Text>
     </View>
   )
diff --git a/src/components/ErrorOverlay/index.css b/src/components/ErrorOverlay/index.css
index 9f2e9f6..b52ce87 100644
--- a/src/components/ErrorOverlay/index.css
+++ b/src/components/ErrorOverlay/index.css
@@ -28,9 +28,11 @@
   font-size: 40rpx;
   font-weight: bold;
   margin-bottom: 20rpx;
+  display: block;
 }
 
 .error-hint {
   font-size: 28rpx;
   opacity: 0.8;
+  display: block;
 }
\ No newline at end of file
diff --git a/src/pages/index/index.tsx b/src/pages/index/index.tsx
index 3dbae78..eeebb47 100644
--- a/src/pages/index/index.tsx
+++ b/src/pages/index/index.tsx
@@ -6,6 +6,7 @@ import { useSdk } from '../../hooks/index'
 import UploadButton from '../../components/UploadButton'
 import LoadingOverlay from '../../components/LoadingOverlay'
 import ErrorOverlay from '../../components/ErrorOverlay'
+import { createPlatformFactory } from '../../platforms'
 
 type PageStep = 'upload' | 'loading' | 'error'
 
@@ -23,6 +24,9 @@ export default function Index() {
 
   const chooseAndGenerateImage = async () => {
     try {
+      const platformFactory = createPlatformFactory()
+      await platformFactory.createUserInfo().checkSession().catch(e => console.error(e))
+
       // 选择图片，选择完成后会自动触发loading状态
       const task_id = await sdk.chooseAndGenerateImage({
         onImageSelected: () => {
@@ -30,7 +34,7 @@ export default function Index() {
           setState({ step: 'loading', error: null })
         }
       })
-      
+
       // 等待生成完成
       await new Promise((resolve) => setTimeout(resolve, 5000))
       const urls = await sdk.getTaskStatus(task_id)
@@ -39,7 +43,7 @@ export default function Index() {
       navigateTo({
         url: `/pages/result/index?images=${encodeURIComponent(JSON.stringify(urls))}`
       })
-      
+
       // 重置状态
       setState({ step: 'upload', error: null })
     } catch (error) {
@@ -54,13 +58,13 @@ export default function Index() {
 
   const renderCurrentStep = () => {
     switch (state.step) {
-      case 'upload': 
+      case 'upload':
         return <UploadButton onUpload={chooseAndGenerateImage} />
-      case 'loading': 
+      case 'loading':
         return <LoadingOverlay />
-      case 'error': 
+      case 'error':
         return <ErrorOverlay onRetry={resetToUpload} />
-      default: 
+      default:
         return <UploadButton onUpload={chooseAndGenerateImage} />
     }
   }
diff --git a/src/pages/result/index.tsx b/src/pages/result/index.tsx
index 4b6d5a1..160acb4 100644
--- a/src/pages/result/index.tsx
+++ b/src/pages/result/index.tsx
@@ -77,6 +77,11 @@ const ResultPage: React.FC = memo(() => {
     }
   }
 
+  // 再来一张
+  const handleRegenerate = () => {
+    navigateBack()
+  }
+
   if (!images.length) {
     return null
   }
@@ -96,7 +101,7 @@ const ResultPage: React.FC = memo(() => {
           <Image className="result-image" src={images[0]} mode="aspectFit" />
         </View>
       </View>
-      <DownloadSection onDownload={handleDownloadImages} loading={adLoading} />
+      <DownloadSection onDownload={handleDownloadImages} onRegenerate={handleRegenerate} loading={adLoading} />
     </View>
   )
 })
diff --git a/src/platforms/core.ts b/src/platforms/core.ts
index a6057d8..bc62f67 100644
--- a/src/platforms/core.ts
+++ b/src/platforms/core.ts
@@ -123,4 +123,44 @@ export abstract class RewardedVideoAd {
    * @returns Promise<void> 预加载完成的 Promise
    */
   abstract preload(): Promise<void>;
+}
+
+
+/**
+ * 获取用户信息
+ */
+export interface IUserInfo {
+  avatarUrl: string;
+  city: string;
+  country: string;
+  gender: number;
+  language: string;
+  nickName: string;
+  province: string;
+}
+
+export interface IUserProfile {
+  userInfo: IUserInfo;
+  cloudId: string;
+  encryptedData: string;
+  errMsg: string;
+  iv: string;
+  rawData: string;
+  signature: string;
+}
+
+export interface ILogin {
+  anonymousCode: string;
+  code: string;
+  errMsg: string;
+  isLogin: boolean;
+}
+
+export interface ICheckSession {
+  errMsg: string;
+}
+export abstract class UserInfo {
+  abstract getUserProfile(): Promise<IUserProfile>;
+  abstract login(): Promise<ILogin>;
+  abstract checkSession(): Promise<ICheckSession>;
 }
\ No newline at end of file
diff --git a/src/platforms/factory.ts b/src/platforms/factory.ts
index 46bcb6d..1c1c307 100644
--- a/src/platforms/factory.ts
+++ b/src/platforms/factory.ts
@@ -1,5 +1,5 @@
-import { RewardedVideoAdTT } from "./tt";
-import { RewardedVideoAd, RewardedVideoAdOptions } from "./core";
+import { RewardedVideoAdTT, UserInfoTT } from "./tt";
+import { RewardedVideoAd, RewardedVideoAdOptions, UserInfo } from "./core";
 
 /**
  * 小程序平台全局对象类型声明
@@ -54,6 +54,24 @@ export class PlatformFactory {
     }
   }
 
+
+  createUserInfo(): UserInfo {
+    switch (this.platform) {
+      case 'tt':
+        return new UserInfoTT();
+      case 'weapp':
+        throw new Error(`微信小程序平台暂未实现`);
+      case 'alipay':
+        throw new Error(`支付宝小程序平台暂未实现`);
+      case 'swan':
+        throw new Error(`百度智能小程序平台暂未实现`);
+      case 'qq':
+        throw new Error(`QQ 小程序平台暂未实现`);
+      default:
+        throw new Error(`不支持的平台类型: ${this.platform}`);
+    }
+  }
+
   /**
    * 获取当前平台类型
    * @returns Platform 当前平台
diff --git a/src/platforms/tt.ts b/src/platforms/tt.ts
index 6e5b855..624f254 100644
--- a/src/platforms/tt.ts
+++ b/src/platforms/tt.ts
@@ -3,7 +3,11 @@ import {
   RewardedVideoCloseCb,
   RewardedVideoErrorCb,
   RewardedVideoLoadCb,
-  RewardedVideoAdOptions
+  RewardedVideoAdOptions,
+  UserInfo,
+  IUserInfo,
+  IUserProfile,
+  ICheckSession
 } from "./core";
 
 /**
@@ -194,4 +198,47 @@ export class RewardedVideoAdTT extends RewardedVideoAd {
   getNativeAd(): any {
     return this.ad;
   }
+}
+
+export class UserInfoTT extends UserInfo {
+  getUserProfile(): Promise<IUserProfile> {
+    return new Promise((resolve, reject) => {
+      tt.getUserProfile({
+        success: (res: any) => {
+          console.log({ res })
+          resolve(res)
+        },
+        fail: (res: any) => {
+          console.log({ res })
+          reject(res)
+        }
+      })
+    })
+  }
+
+  login(): Promise<any> {
+    return new Promise((resolve, reject) => {
+      tt.login({
+        success: (res: any) => {
+          resolve(res)
+        },
+        fail: (res: any) => {
+          reject(res)
+        }
+      })
+    })
+  }
+
+  checkSession(): Promise<ICheckSession> {
+    return new Promise((resolve, reject) => {
+      tt.checkSession({
+        success: (res: any) => {
+          resolve(res)
+        },
+        fail: (res: any) => {
+          reject(res)
+        }
+      })
+    })
+  }
 }
\ No newline at end of file