diff --git a/example/App.js b/example/App.js
index 57a62cd..bc14489 100644
--- a/example/App.js
+++ b/example/App.js
@@ -13,21 +13,33 @@ export default class App extends Component {
     Alipay.setAlipayScheme('uiwjspay');
   }
   aliPay = async () => {
-    // return_url=
-    const payInfo = 'alipay_sdk=alipay-sdk-java-dynamicVersionNo&app_id=2021001172656340&biz_content=%7B%22out_trade_no%22%3A%221111112222222%22%2C%22total_amount%22%3A%220.01%22%2C%22subject%22%3A%221234%22%2C%22product_code%22%3A%22QUICK_MSECURITY_PAY%22%7D&charset=UTF-8&format=json&method=alipay.trade.app.pay&notify_url=http%3A%2F%2Fane.boshu.ltd%2Fowner%2Fpay%2Fapi%2FownerPay%2Fcallback&sign=oUQmGtkv8mrhJ0YwHl9%2FfxMcoLACWuSFKiMTC4Id8nc%2FZVvDQ6MLQq5hhtEN03Qn1%2BAtzTAaofE8nNixdroxOek2l5YtOAcYcXVYlJIyogN%2B22erN2NpDTWJ7tQTKgYFDJLRiG0DZJaxfADhUUF6UR9kdA8omoXKLDlP17ZPUs5Jr4aKv5HJtH5C53ui7PbmyWYg934L4UDC2F%2F9pPQlRwwDeE1SAaV3HW9Dt83kK52o8%2FlChXdotbFdAvH0d4qYGhpEYU5sepj9xiOMyL9aC4pMXW9INYLLGbvtqtlRchZTAfH5yji6nqqQm9KKMmcVrWdBDLyjFVNpejq1UjbJBw%3D%3D&sign_type=RSA2&timestamp=2020-07-09+12%3A16%3A16&version=1.0';
-    const resule = await Alipay.alipay(payInfo);
-    console.log('alipay:resule-->>>', resule);
+    try {
+      // return_url=
+      const payInfo = 'alipay_sdk=alipay-sdk-java-dynamicVersionNo&app_id=2021001172656340&biz_content=%7B%22out_trade_no%22%3A%221111112222222%22%2C%22total_amount%22%3A%220.01%22%2C%22subject%22%3A%221234%22%2C%22product_code%22%3A%22QUICK_MSECURITY_PAY%22%7D&charset=UTF-8&format=json&method=alipay.trade.app.pay&notify_url=http%3A%2F%2Fane.boshu.ltd%2Fowner%2Fpay%2Fapi%2FownerPay%2Fcallback&sign=oUQmGtkv8mrhJ0YwHl9%2FfxMcoLACWuSFKiMTC4Id8nc%2FZVvDQ6MLQq5hhtEN03Qn1%2BAtzTAaofE8nNixdroxOek2l5YtOAcYcXVYlJIyogN%2B22erN2NpDTWJ7tQTKgYFDJLRiG0DZJaxfADhUUF6UR9kdA8omoXKLDlP17ZPUs5Jr4aKv5HJtH5C53ui7PbmyWYg934L4UDC2F%2F9pPQlRwwDeE1SAaV3HW9Dt83kK52o8%2FlChXdotbFdAvH0d4qYGhpEYU5sepj9xiOMyL9aC4pMXW9INYLLGbvtqtlRchZTAfH5yji6nqqQm9KKMmcVrWdBDLyjFVNpejq1UjbJBw%3D%3D&sign_type=RSA2&timestamp=2020-07-09+12%3A16%3A16&version=1.0';
+      const resule = await Alipay.alipay(payInfo);
+      console.log('alipay:resule-->>>', resule);
+    } catch (error) {
+      console.log('alipay:error-->>>', error);
+    }
   }
   authInfo = async () => {
-    const authInfoStr = 'app_name=mc&auth_type=AUTHACCOUNT&apiname=com.alipay.account.auth&biz_type=openservice&product_id=APP_FAST_LOGIN&scope=kuaijie&pid=2088421915791034&target_id=15946456110003465&app_id=2021001172656340&sign_type=RSA2&sign=keluG28qbbLwAcSDI4VmCNOGHJoF3xgpVeqXu1nCBCYo%2FlYYGe00fTfV9L4G73Sk7%2B4IwK%2BZV8IL%2F04cVtk6SR74lKAR3rYOoUdQ09ZrZFuQoUkO0vekajhp75IDQIg6PedCyY0SjFTqrHlH%2FImscBwitxrlSc9YbN7uW0gY34K8t7v8NhDoqzKJeoIz43UxF5U1DpUA1ISBVxwO7du1t6rYltsRhReayPS3hnvmwYSKQZUEgBvJ%2BT2XdyCaz%2FdGV907lYagPp1Oxkoaj%2FvW5NjNsRnid7vH944CoFj9XtBK%2FNTk2tBPTHFxYRQTEG1PkgkBohGpAWOFGGOuapH0ag%3D%3D';
-    const resule = await Alipay.authInfo(authInfoStr);
-    // resule => success=true&auth_code=9c11732de44f4f1790b63978b6fbOX53&result_code=200&alipay_open_id=20881001757376426161095132517425&user_id=2088003646494707
-    console.log('authInfo:resule-->>>', resule);
+    try {
+      const authInfoStr = 'app_name=mc&auth_type=AUTHACCOUNT&apiname=com.alipay.account.auth&biz_type=openservice&product_id=APP_FAST_LOGIN&scope=kuaijie&pid=2088421915791034&target_id=15946456110003465&app_id=2021001172656340&sign_type=RSA2&sign=keluG28qbbLwAcSDI4VmCNOGHJoF3xgpVeqXu1nCBCYo%2FlYYGe00fTfV9L4G73Sk7%2B4IwK%2BZV8IL%2F04cVtk6SR74lKAR3rYOoUdQ09ZrZFuQoUkO0vekajhp75IDQIg6PedCyY0SjFTqrHlH%2FImscBwitxrlSc9YbN7uW0gY34K8t7v8NhDoqzKJeoIz43UxF5U1DpUA1ISBVxwO7du1t6rYltsRhReayPS3hnvmwYSKQZUEgBvJ%2BT2XdyCaz%2FdGV907lYagPp1Oxkoaj%2FvW5NjNsRnid7vH944CoFj9XtBK%2FNTk2tBPTHFxYRQTEG1PkgkBohGpAWOFGGOuapH0ag%3D%3D';
+      const resule = await Alipay.authInfo(authInfoStr);
+      // resule => success=true&auth_code=9c11732de44f4f1790b63978b6fbOX53&result_code=200&alipay_open_id=20881001757376426161095132517425&user_id=2088003646494707
+      console.log('authInfo:resule-->>>', resule);
+    } catch (error) {
+      console.log('authInfo:error-->>>', error);
+    }
   }
   getVersion = async () => {
-    const version = await Alipay.getVersion();
-    this.setState({ version });
-    console.log('version:', version);
+    try {
+      const version = await Alipay.getVersion();
+      this.setState({ version });
+      console.log('getVersion:', version);
+    } catch (error) {
+      console.log('getVersion:error-->>>', error);
+    }
   }
   render() {
     return (