Fix Bug: 关于页

lib/pages/MyMsics/07_myAbout/MyAbout.dart

@@ -114,7 +114,7 @@ class _LoginPageState extends State<MyAbout> {
                   SizedBox(height: 60),
                   // Text('宜宾市翠屏黑烟车电子抓拍系统', style: TextStyle(fontSize: 20)),
                   Text(qx_name_long + '黑烟车电子抓拍系统', style: TextStyle(fontSize: 20)),
-                  Text('v${widget.ver}（${widget.date}）', style: TextStyle(fontSize: 20)),
+                  Text('v${widget.ver}', style: TextStyle(fontSize: 20)),
                   SizedBox(height: 60),
                   // Text('© 宜宾市翠屏生态环境局  版权所有',
                   Text(copyright_info,

lib/pages/tabs/page4_myMsics_new.dart

@@ -443,14 +443,10 @@ class _Page4_MyMsicsNewState extends State<Page4_MyMsicsNew>
 
   OnTap_MyAbout() {
     PackageInfo.fromPlatform().then((PackageInfo packageInfo) {
-      String appName = packageInfo.appName;
-      String packageName = packageInfo.packageName;
       String version = packageInfo.version;
       String buildNumber = packageInfo.buildNumber;
-      String buildDate =
-          '${buildNumber.substring(0, 4)}.${buildNumber.substring(4, 6)}.${buildNumber.substring(6, 8)}';
       Navigator.of(context)
-          .push(MaterialPageRoute(builder: (context) => MyAbout(ver: version, date: buildDate)));
+          .push(MaterialPageRoute(builder: (context) => MyAbout(ver: version)));
     });
   }