January 2012
Intermediate to advanced
584 pages
11h 56m
Chinese
Content preview from 操作介面設計模式 第二版
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模式
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15
這種傾向的確是可以幫助人們變成某工具的專家級使用者（也可以幫助建立忘我的
感覺）。習 慣可以明顯 地改進效率 ，這你應該 不難想像。 但習慣也會 害使用者鬼
打牆。當某個手勢變成習慣，但是使用者卻在一個不支援此手勢的地方使用它怎麼
辦？或是更糟的狀況，使用該手勢可能會造成破壞的後果怎麼辦？……使用者被弄
得措手不及。他忽然間必須再度思考這個工具的用法（我剛剛做了什麼？要怎麼做
才能達到目的？），而且還必須想辦法復原剛剛的手勢所造成的傷害。
比方說，Emacs 文字編輯器使用 Ctrl-X
→
Ctrl-S 做為「儲存檔案」的捷徑；Ctrl-A
用於移動文字到行的開端。這些動作變成 Emacs 使用者的習慣。當使用者在 Emacs
中依序按下 Ctrl-A、Ctrl-X、Ctrl-S，就會進行一組相當無害的動作：移動游標、
儲存檔案。
如果我們在 Microsoft Word 中輸入相同的按鍵組合和次序，又會如何？
1. Ctrl-A：全選
2. Ctrl-X：剪下選取的部分（在這個例子中，就是整份文件）
3. Ctrl-S：將文件存起來（唉呀！）
所以不同程 式之間的一 致性很重要 ！（也是可 靠的「復原 」功能之所 以很有用的
原因。）
同一個應用程式內的一致性也同樣重要。某些程式很邪惡，因為某個手勢預期會做動
作 X，只有在一個特殊狀況下，該手勢會做動作 Y。千萬不要這樣設計你的軟體，否
則使用者一定會犯錯；他們越有經驗 — 越有一些反射動作 — 就越會在此犯錯。
如果你在為行動裝置
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.