豆知识 2011-10-16&10-22 QR码

 You've probably bought groceries and seen the cashier scan an item to get its price. It works because each product has a code that’s a shortcut¹. It prevents the cashier from having to look up each item. Well, these days, new kinds of codes are appearing that are scannable with camera phones. And like a cashier's scanner, they create shortcuts² to all kinds of information. This is QR Codes Explained by Common Craft. 

 

 

 

In our online world, everything is linked together. You visit a website, and click a link to visit another site, send a message, view a photo or download a video. A simple click makes everything possible. On the other hand, our physical world is what you see walking down the street. The problem is nothing is clickable. You can't click a URL on a container to see recipes. You can't click a statue to read about it on Wikipedia. So, you end up having to type in a link, take notes or just keep walking. But that's starting to change. You may have seen codes like these. They’re called QR or quick response codes. And they mean your camera phone can now be a little like a cashier's scanner. Once you have a QR reader app on your smart phone, you can point your camera phone at these codes and immediately grab useful information. 

 

 

 

Let's say you’re running errands and walk by a sign that says “New Show Coming Soon” and there's a QR code. You can just open your QR reader app, point your camera phone at the code, and the app will automatically give you options. No links to remember, no notes, just point your phone at the QR code and the real world becomes clickable. But that's just the beginning. Imagine visiting a landmark³ and using a QR code to watch a video about it, or scanning a QR code in the newspaper or magazine to email a link to a friend, or scanning one to follow your local bakery on Twitter. 

1 shortcut   

n.近路，捷径

参考例句：

• He was always looking for a shortcut to fame and fortune.他总是在找成名发财的捷径。
• If you take the shortcut,it will be two li closer.走抄道去要近2里路。

2 shortcuts   

n.捷径( shortcut的名词复数 )；近路；快捷办法；被切短的东西（尤指烟草）

参考例句：

• In other words, experts want shortcuts to everything. 换句话说，专家需要所有的快捷方式。 来自About Face 3交互设计精髓
• Offer shortcuts from the Help menu. 在帮助菜单中提供快捷方式。 来自About Face 3交互设计精髓

3 landmark   

n.陆标，划时代的事，地界标

参考例句：

• The Russian Revolution represents a landmark in world history.俄国革命是世界历史上的一个里程碑。
• The tower was once a landmark for ships.这座塔曾是船只的陆标。