Keyboard F9 who knows what it does?

F9: Doesn't work in Windows either, but can be used to quickly lower the volume in Windows Media Playe*.

Computer keyboard shortcuts work as follows:

F1: If you are in a selected program and need help, press F1. If you are not in any program, but in Explorer or on the desktop, then press F1 and the Windows helper will appear.

If you are working on a program and want to get help from Windows, you need to press Win+F1. Press shift+f1 and whats this?for help information.

F2: If a file or folder is selected in Explorer, pressing F2 will rename the selected file or folder.

Then press the F3 key directly to quickly open the search window, and the search scope has been set to the folder by default. Again, press it in Windows Media Playe*, F4: This key is used to open the address bar list in IE, and to close the IE window, you can use the Alt+F4 key combination.

F5: Used to refresh the contents of the window currently in IE or Explorer.

F6: You can quickly locate the address bar in Explorer and IE.

F7: Doesn't work in Windows. But in the DOS window, it works, so give it a try.

F8: You can use it to display the boot menu when you start up your computer. Some computers can also press this key at the beginning of the computer boot to quickly bring up the boot settings menu, from which you can quickly choose whether to boot on a floppy disk, a CD, or directly with a hard disk, without having to go into the BIOS to modify the boot sequence.

F9: Again it doesn't work in Windows. However, it can be used to quickly lower the volume in Windows Media Playe*.

F10: Used to activate the menu in Windows or programs, press Shift+F10 to bring up the right-click shortcut menu. It does the same thing as the Application key in the keyboard, but in Windows Media Playe*, it functions to increase the volume.

F11: You can make the current explorer or IE full-screen.

F12: Again it doesn't work in Windows. But in wo*d, pressing it will quickly pop up the Save as File window.

What are F1 and F12 used for? All keyboards have at least 12 function keys, often referred to as the F key, which are generally located at the top of the keyboard

The F9 key also has no special function on the windws system, but it can also reorganize files in the word processing program, relaunch emails in the receiving software Outlook, and the Windows ** device Medis Player has the function of turning down the volume.

There are F1 to F12 function keys in the top row of the computer keyboard, because ordinary users usually use less, so many netizens do not know much about the use and function of the F1-F12 keys on the keyboard, and there may be few people who really know all the uses.

The F1-F12 key can also be used in combination with the FN key to achieve more functions, such as FN+F1 can turn off the volume, FN+F6 to turn off the trackpad, FN+F11 to reduce the screen brightness, FN+F12 to increase the screen brightness, etc., different brands of notebook FN combination F1-12 key use to achieve different functions, in addition, the F1-F12 of the Apple computer keyboard is also different from the Windows computer.

F9 to see what situation you use it! The upstairs is already very detailed. There are different functions in some special environments. For example, when the compiler is pressed f9 to compile the program, when playing Fantasy Journey to the West, pressing f9 is to hide other people, etc.

At that time, it was possible to resist it.

Customize the keyboard with a full-key macro, and set the key values at will.

All-key macro customization function, RGB lighting, hot residual dismantling and unplugging.

can be replaced with any brand of shaft) aluminum alloy used for the upper cover.

Three-mode version (wireless + Bluetooth + type-c wired connection).

Three-way wiring of the bottom cover, more convenient; Two-section tripod.

Two Type-C interfaces, which can be connected to an external hub.

Ze Yi left vertical hand mechanical keyboard A version.

Zeyi left number mechanical keyboard A version.

Dual Type-C ports, connected to an external hub