有没有复制浏览器/键盘功能的优点？
重复浏览器/键盘功能对用户体验有好处吗？
例如：在网页上提供这些链接。
- “返回顶部”链接
- “打印此页”链接
- “添加到收藏夹”链接
- “返回”按钮/链接
- “文本缩放”按钮 alt text http://shup.com/Shup/344995/110421205515-My-Desktop.png
它们真的创造了网站的可用性和可访问性吗？
屏幕阅读器将如何处理这些链接，这些链接是否会让屏幕阅读器用户感到困惑？
Is it good for user experience to duplicate browser/keyboard functionality?
For example: to provide these links on a web-page.
- "Back to top" link
- "Print this page" link
- "Add to Favorite" link
- "Back" button/link
- "Text zoom" button alt text http://shup.com/Shup/344995/110421205515-My-Desktop.png
Are they really create Site's usability and accessibility?
How screen reader will behave these links, will these confuse to screen reader users?
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添加此类链接应该是出于场景的考虑。如果用户在访问您的页面时通常会在工作流程的某个阶段打印页面，那么如果特定的命令选项是直接可见的并且可以通过单击执行，那么对于大多数用户来说会更加方便。
场景：用户想要在线购买门票。他们将选择活动、选择类别、输入个人详细信息和账单信息，最后将打印门票。不要在最后一步让用户独自一人并让他搜索浏览器菜单，只需在页面正文中内联提供打印选项即可。
Adding such links should be motivated by a scenario. If users normally would print the page at a certain stage of the workflow when visiting your page, then it will be much more convenient for most of the users if the specific command option is directly visible and can be executed with a single-click.
Scenario: A user wants to buy an online ticket. They will select the event, choose a category, enter their personal details and billing information the finally will print the ticket. Instead of leaving the user alone at this last step and make him search the browser menus simply offer the print option inline in the body of the page.
我想说这通常是一个非常糟糕的主意。屏幕阅读器肯定会包含访问浏览器实现该功能的方法，而重复这些只会浪费他们的时间。
我想说，样板文本对于屏幕阅读器用户来说几乎总是不好的。
I would say it was generally a very bad idea; the screen reader would definitely include ways of accessing the browser's implementation of that functionality, and duplicating that just wastes their time.
I would say that boilerplate-text is almost always bad for screen reader users.
许多人还没有养成使用 Home 和 End 键转到页面顶部和底部的习惯，因此我不认为
返回顶部链接非常令人反感。打印此页面链接可以呈现一个适合打印的页面，而不是通常散布着横幅和其他内容的主页。添加到收藏夹- 不是一个大粉丝。后退按钮- 在工作流程场景中可能很有用，但最好与我的浏览器中的后退按钮执行完全相同的操作。一般来说，更常见的模式是提供带有描述文本的链接，例如“返回主页”。文本缩放按钮- 喜欢它。它允许我调整一个网站，同时保留浏览器中其他网站的设置。Many people haven't gotten into the habit of using the Home and End keys to go to the top and bottom of the page, so I don't find
Back to Toplinks highly objectionable.Print this pagelinks can present a printer-friendly page, instead of the main page which is generally littered with banners and other stuff.Add to favorites- Not a big fan.Back button- Can be useful in workflow scenarios, but it better do exactly the same thing that the back button in my browser does. Generally the more common pattern is to provide a link, with describing text, such as "Return to Main Page."Text Zoom Button- Love it. It allows me to tweak one site, while retaining the settings in my browser for other sites.作为一名屏幕阅读器用户，我并不真正关心其中一种方式。听几个额外的链接对我来说没有什么区别。屏幕阅读器用户通常只占网站访问者的极少数。如果添加页面顶部或添加到收藏夹等链接使网站对非屏幕阅读器用户更可用，我会说添加链接，因为屏幕阅读器用户很容易忽略它。如果您正在编写专门针对屏幕阅读器用户的网站，那么您可能不想添加链接，因为他们是您的大多数用户。
As a screen reader user I don't really care one way or the other. Listening to a couple extra links doesn't make a difference to me. Screen reader users are generally going to be a very small minority of the visitors to a site. If adding links such as top of page or add to favorites makes the site more usable to non screen reader users I would say add the links since it is something that's very easy for screen reader users to ignore. If you are writing a site specifically targeted at screen reader users then you may not want to add the links since they would be the majority of your users.