优化好友页面

lib/pages/mine/my_friend_page.dart

@@ -254,7 +254,7 @@ class _UserItemState extends State<UserItem> {
                     ],
                   ),
                   Text(
-                    "${widget.item.age}岁·${widget.item.cityName}",
+                    "${widget.item.age ?? ""}岁·${widget.item.cityName ?? ""}",
                     style: TextStyle(
                       fontSize: 11.w,
                       color: const Color.fromRGBO(144, 144, 144, 1),
@@ -352,7 +352,7 @@ class _AddUserItemState extends State<AddUserItem> {
                     ],
                   ),
                   Text(
-                    "${widget.item.age}岁·${widget.item.cityName}",
+                    "${widget.item.age ?? ""}岁·${widget.item.cityName ?? ""}",
                     style: TextStyle(
                         fontSize: 11.w,
                         color: const Color.fromRGBO(144, 144, 144, 1),