优化用户名

@@ -288,8 +288,8 @@ function phoneHidden(phone) {
     return phone.replace(/(\d{3})\d{4}(\d{4})/, '$1****$2');
 }
 
-if ($('.user-name').text().length === 11) {
-    $('.user-name').html(phoneHidden($('.user-name').text()));
+if ($footer.find('.user-name').text().length === 11) {
+    $footer.find('.user-name').html(phoneHidden($footer.find('.user-name').text()));
 }
 
 //暴露公共接口