Vim 訣竅：使用view portsRef: http://www.linux.com/articles/54157
Vim tips: Using viewports
Vim 訣竅：使用view ports
By Joe 'Zonker' Brockmeier on May 10, 2006 (8:00:00 AM)
A lot of folks use Vim, but many exploit only a small percentage of the editor's features. Sure, you might know how to do the basics in Vim, but what about using more advanced features such as folding, split windows, and marks? With a little practice, you can really boost your productivity with Vim.
In this and future articles, I'm going to cover Vim features that you may not be familiar with if you're a casual Vim user. If you're confident using Vim to edit configuration files or make short edits in text files, but maybe not too comfortable with undertaking major writing or coding in Vim, then these articles should be for you.
Splitting Vim's viewport
A really useful feature in Vim is the ability to split the viewable area between one or more files, or just to split the window to view two bits of the same file more easily. The Vim documentation refers to this as a viewport or window, interchangeably.
You may already be familiar with this feature if you've ever used Vim's help feature by using :help topic or pressing the F1 key. When you enter help, Vim splits the viewport and opens the help documentation in the top viewport, leaving your document open in the bottom viewport.
如果你曾經使用Vim的輔助特性（藉由:help topic 或是按下 F1 鍵），你可能已經熟悉這項特性。當你進入輔助說明（help）時，Vim分割viewport，並且開啟輔助說明文件在上面的viewport，而讓你的文字開啟在底下的viewport。
Vim viewport keybinding quick reference
:sp will split the Vim window horizontally. Can be written out entirely as :split .
:vsp will split the Vim window vertically. Can be written out as :vsplit .
:vsp 會將視窗垂直分割。能被寫成 :vsplit
Ctrl-w Ctrl-w moves between Vim viewports.
Ctrl-w Ctrl-w 會在View的viewports間移動
Ctrl-w j moves one viewport down.
Ctrl-w j 會把一個viewport 往下移
Ctrl-w k moves one viewport up.
Ctrl-w k 會把一個viewport 往上移
Ctrl-w h moves one viewport to the left.
Ctrl-w h 將一個viewport往左移
Ctrl-w l moves one viewport to the right.
Ctrl-w l 將一個viewport往右移
Ctrl-w = tells Vim to resize viewports to be of equal size.
Ctrl-w = 告訴Vim 去將viewports的尺寸變成相同的大小
Ctrl-w - reduce active viewport by one line.
Ctrl-w - 將作用中的viewport 減少一行
Ctrl-w + increase active viewport by one line.
Ctrl-w + 將作用中的viewport 增加一行
Ctrl-w q will close the active window.
Ctrl-w q 會關閉作用中的視窗
Ctrl-w r will rotate windows to the right.
Ctrl-w r 會將視窗轉到右方
Ctrl-w R will rotate windows to the left.
Ctrl-w R 會將視窗轉到左方
If you want to use this feature for something other than viewing Vim's help files, you can split the viewport by using :sp, :split, or Ctrl-w n -- they do the same thing, but just typing :sp will save you a few characters, and it's easier to use with arguments, such as filenames. Remember the Ctrl-w part, though, because it will come in handy for most operations with windows.
如果你想要用這個特性來做些除了觀看Vim的輔助檔以外的事，你可以用:sp來分割視埠，:split，或是Ctrl-w n －－他們會做同一件事，不過只打:sp會省下幾個打字的功夫，且它也較容易與引數一起使用，例如檔名。雖然只記得Ctrl-w的部份，因為它對於大部份視 窗的操作會。？？
The :sp command will divvy up the viewport into two equal viewports for the file that you have open. If you'd like to work on two files simultaneously, no problem -- just follow the command with the filename you'd like to use, like this:
That will open filename in the new viewport. You can even add a search string to that to move directly to the first instance of a keyword, like so:
:sp +/searchstring filename
Easy as falling off a log. What if you don't want to have equal viewports? For example, let's say you want to open a reference file in the top viewport, but want the majority of the viewport available for the file you're actually editing. No problem. Just prepend a number to the sp command, and the new viewport will fill that number of lines:
:10 sp filename
Now you have a viewport with 10 lines, but what if you've decided that you'd like to give both viewports equal real estate? That's easy enough too. Instead of going into command mode, you can use a normal keybinding to accomplish this. Ctrl-w = tells Vim to assign an equal number of lines to each viewport.
現在你有一個10行的視埠，不過如果你已經決定你想要讓二個視埠有著相同的大小？那也有夠容易的。不用進去命令模式，你可以用一個常用的按鍵對應（keybinding）來做這件事。Ctrl+w = 告訴Vim指派相等行數給每一個視埠。
To move between the viewports while working, use Ctrl-w j to move down, and Ctrl-w k to move up. This should prove easy to remember -- Ctrl-w for "window" commands, and the normal vi movement commands j for down and k for up. You can also cycle between viewports by using Ctrl-w Ctrl-w.
當工作時，要在視埠間移動，用Ctrl-w j來向下移，Ctrl-w k來向上移。這應該證明了它很容易記 －－ Ctrl-w 是對於「視窗（window）命令」，而一般的vi移動命令j來向下移動，k來向上移動。你也可以用Ctrl-w Ctrl-w來在視埠間循環地移動。
You can increase or decrease a viewport's size after it's been created. Use Ctrl-w + to increase the active viewport, and Ctrl-w - to decrease its size by one line. If one line at a time isn't sufficient, add a modifier before the + or -. For instance, to add 13 lines, use Ctrl-w 13+.
你可以在視埠被建立後，增加或減少一個視埠的尺寸。使用Ctrl-w + 來增加作用中視埠的尺寸，Ctrl-w -來減少它的尺寸一列。如果一次一列不夠，那麼加一個修飾元（modifier）在+號或－號的前面。例如，要增加13行，使用Ctrl-w 13+。
If horizontal viewports just don't do it for you, Vim also supports splitting viewports vertically. To do this, just use :vsp, or :vsplit if you prefer to spell it out. Movement between vertical viewports is similar to moving between horizontal viewports. Ctrl-w Ctrl-w works, and instead of using the j and k movement keys, use the h and l movement keys to move back and forth between viewports. To move to the viewport to the right, for example, you'd use Ctrl-w l.
如果水平的視埠沒有為你做這件事， Vim也支援垂直地分割視埠。要做這件事，只要用:vsp或如果你偏好將它拚出來，可以用:vsplit。在垂直視埠間移動很像在水平視埠間移動。也可以 用Ctrl-w Ctrl-w，而不是用j或k的移動鍵，用h和l的移動鍵來向後一個和向前一個視埠移動。例如，要將視埠移動到右方，你可以用Ctrl-w l。
It's also worth mentioning that you can open a file in a viewport just to view the file, without opening it to edit. To do this, use the :sview filename command. To do it vertically, use :vert sview filename .
也值得一提的是你可以在一個視埠中開啟一個檔案，只是去觀看檔案，而不用開啟它來編輯。要這麼做，用 :sview filename命令。要以垂直地方式來做，那麼用:vert sview filename。
You can close a window in one of several ways. The easiest is to just use the quit command, :q, or you can use Ctrl-w q. Note that if it's the only window open with a file, Vim will prompt you to save the file if it isn't saved already.
你也可以用數種方法中的一種來關閉視埠。最簡單的方法就是使用quit命令，:q，或者你可以用Ctrl-w q。注意，如果這是唯一開啟檔案的視窗，如果檔案尚未儲存，Vim 會提示你要儲存檔案。
Also, it's possible to rotate the windows, if you decide you'd prefer to have the top window on the bottom or vice versa. To do this, use Ctrl-w r to move windows to the right or down. When you do this, for example, in a Vim session with three horizontal viewports open, the top viewport would go to the middle position, the middle viewport would take the bottom position, and the bottom viewport would rotate to the top. To go in the opposite direction, use Ctrl-w R instead.
同樣地，也可以去旋轉視窗，如果你決定你偏好讓頂端的視窗在底端，反之亦然。要這樣做，用Ctrl-w r來移動視窗到右方或是下方。舉例來說，當你在一個有三個水平視埠開啟的Vim session中這麼做，頂端的視埠會到中央，中央視埠會到底端，而底端的視埠會轉移到頂端。要以向反的方向移動，改用Ctrl-w R。
Vim often offers several different ways to achieve the same things. For instance, as I pointed out, :sp, :split, and Ctrl-w n all create a new viewport. I haven't listed all of the possible commands or keybindings to accomplish all of the tasks here.
Vim 通常提供數種不同的方法來儲存相同的東西。例如，如我指出的，:sp, :split和Ctrl-w n都會建立一個新的視埠。我還沒有列出所有可能的命令或是對應鍵（keybindings）來完成所有在此的工作。
Over the years, I've found Vim's split windows features to be very useful. I often use it to edit a column or article in one viewport, and to read and copy from notes in another viewport.