What is the Windows system window maximization and minimization shortcut?

To everyone's science is the win7 window to maximize and minimize shortcuts.

Windows Key + Direction Key “↑”

Maximize the currently used window.

Windows key + arrow keys “↓”

Returns the maximized window currently in use to normal display; or minimizes the current window if it is not maximized .

Windows key + arrow keys “←” /Windows key + arrow keys “→” (Aero Snap)

Put the window in use to the left side of the screen /Right side, and only occupy 50% of the display area, skilled use of this feature is convenient for editing two documents at the same time and proofreading.

Windows key, referred to as "Winkey" or "Win key", is the button between the Ctrl and Alt keys in the lower left corner of the computer
The main keyboard area of ​​the full-size keyboard often has a lower right corner (generally and a shortcut menu button equivalent to the right mouse button), and the logo is the Windows logo of Microsoft Windows.