缺陷图片显示小

app/helpers/application_helper.rb

@@ -329,7 +329,7 @@ module ApplicationHelper
     imagesize = attachment.thumbnail(:size => "50*50")
     imagepath = named_attachment_path(attachment, attachment.filename)
     if imagesize
-      link_to image_tag(thumbnail_path(attachment,"50")),
+      link_to image_tag(thumbnail_path(attachment), height: '73', width: '100'),
               imagepath,
               :title => attachment.filename
     else