The small numeric keyboard has a lock, which means that the keyboard has two functions. You can look at the NUMLOCK key in the upper left corner of the small keyboard. That is the switch key. You press it. Try it and then press it again to see if the words that appear are the same. (Recommended learning: phpstorm)
You can press the shortcut key fn w, which is suitable for most models. You can press the shortcut key Fn Win to switch back. For Apple models, you can press Shortcut key ctrl fn alt w, some models of win8 system.
Extended information: FN is mostly a key on a laptop. Use it with the F1~12 keys to form a key combination. To make up for the lack of keyboard keys on the laptop.
It is a key that often appears in the lower left corner of notebook and netbook keyboards. Some notebooks place the Ctrl key in the lower left corner, and the Fn key in the bottom row of the keyboard, second from the left.
"Fn" is usually printed in blue, but also in green or purple. The function implemented by the combined key is represented by the same color on another key.
These key combinations can adjust the hardware (sleep, switch displays), or supplement the keys that are present on the desktop but omitted on the notebook. Fn Up/Down keys" adjust the brightness of the display; Fn SAS keys" turn on or off the external CRT monitor or projector.
Key Lock key.
It is on the rightmost row at the top of the keyboard. As the name suggests, its function is to lock/unlock the keyboard. It is an on/off key. Press this key once to lock the keyboard. At this time, press the keyboard. The machine does not respond to any keys other than this key. Pressing this key again will unlock the keyboard.
Number keyboard unlocking method/step
1. First, have you connected an external keyboard to the computer.
2. If you have connected an external keyboard like this, have you pressed the "Numlock" key?
3. If you have pressed the "Numlock" key, use the external keyboard to press the "Numlock" key again, and it will return to normal.
4. If you have not received an external keyboard recently, you can find the "Fn" key on the computer keyboard. This key is also called the "second function key" because when you press this key, When you press another key with two functions, the second function will appear on that key.
5. Then find the "F8" key, because the second function of this key is the function of the "Numlock" key. Press the "Fn" and "Numlock" keys at the same time to complete the keyboard numbers. Unlock the key.
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