What if the keyboard of a mobile phone without a mouse can't be set?

1. the input method can only be switched by clicking with the mouse, but what if it can't be switched by pressing the keyboard?

right-click the taskbar language to display en (ch)-settings-key settings-in the list box in the hotkey of input language area, select "switch between different input languages"-click "change key order"-check "switch keyboard layout".

* * * * * * * *

There is a key setting in Start-Control Panel-Regional and Language Options-Language-Settings-Click to enter-Switch in different languages-Check the keyboard layout, and then select CTRL+SHIFT. Is it done? If CTRL+SHIFT can't be switched, use ALT+SHIFT key

2. How to control the mouse with the keyboard

First, press the Windows special key on the keyboard or the combination key of "Ctrl+Esc" to pop up the Start menu bar. Then use the direction key to select "Settings → Control Panel", and the "Control Panel" window will appear after pressing the Enter key. Then use the arrow keys to select "Auxiliary Options". In this window, use the Tab key to move the cursor to the "Keyboard" Tab, use the Tab key to move the cursor to the "Use Mouse Keys" option, press the spacebar to select it, and finally press Enter to complete the setting of keyboard instead of mouse.

When using, you can use the numeric keys of the keypad instead of the mouse: 8, 2, 4 and 6 are up, down, left and right respectively, 1, 3, 7 and 9 are left, right, left and right buttons, 5 stands for clicking the button,+plays the role of double clicking the mouse,/and-are left and right of the mouse respectively, and * realizes the function of pressing the left and right buttons of the mouse at the same time.

3. How to operate the keyboard without a mouse

1. Copying the keyboard shortcut keys with Ctrl+C.

Ctrl+X cut. Ctrl+V paste.

Ctrl+Z undo. DELETE delete.

Shift+Delete permanently deletes the selected item without putting it in the Recycle Bin. Press CTRL while dragging an item to copy the selected item.

press CTRL+SHIFT while dragging an item to create a shortcut key for the selected item. F2 Rename the selected item.

CTRL+right arrow moves the insertion point to the beginning of the next word. CTRL+Left Arrow moves the insertion point to the beginning of the previous word.

CTRL+down arrow moves the insertion point to the beginning of the next paragraph. CTRL+up arrow moves the insertion point to the beginning of the previous paragraph.

CTRL+SHIFT+any arrow key highlights a piece of text. SHIFT+any arrow key to select multiple items in a window or desktop, or to select text in a document.

Ctrl+A selects all contents. F3 Search for files or folders.

Alt+Enter to view the properties of the selected item. Alt+F4 closes the current project or exits the current program.

ALT+Enter displays the properties of the selected object. Alt+spacebar opens a shortcut menu for the current window.

Ctrl+F4 closes the current document in a program that allows multiple documents to be opened at the same time. Alt+Tab switches between open projects.

Alt+Esc switches cyclically in the order in which the items are opened. F6 Cycle through screen elements in a window or desktop.

F4 displays the list of Address columns in My Computer and Windows Explorer. Shift+F1 displays the shortcut menu of the selected item.

Alt+spacebar displays the system menu of the current window. Ctrl+Esc displays the start menu.

the underlined letters in alt+menu names display the corresponding menus. The underlined letters in the command names displayed on the opened menu execute the corresponding commands.

F1 activates the menu bar in the current program. The right arrow key opens the next menu on the right or opens a submenu.

the left arrow key opens the next menu on the left or closes the submenu. F5 refreshes the current window.

BackSpace views the parent folder in My Computer or Windows Explorer. Esc cancels the current task.

press the SHIFT key when inserting a CD into a CD-ROM drive to prevent the CD from playing automatically. Second, the dialog box shortcut key purpose Ctrl+Tab moves forward between tabs.

Ctrl+Shift +Tab moves backwards between tabs. Tab moves forward between options.

Shift+Tab moves backwards between options. ALT+underlined letters execute the corresponding command or select the corresponding option.

Enter executes the command corresponding to the active option or button. Spacebar If the active option is a check box, select or clear the check box.

when the arrow keys are a set of option buttons, please select a button. F1 displays help.

F4 displays the items in the current list. BackSpace a folder is selected in the Save As or Open dialog box, the parent folder is opened.

third, natural KEYboard shortcuts in the "Microsoft natural keyboard" or other compatible keyboards with WINdows logo key (Win for short) and "Application" key (Key for short), you can use the following shortcut keys. Press WIN to show or hide the "Start" menu.

WIN+ BREAK displays the system properties dialog box. WIN+ D displays the desktop.

WIN+ M minimizes all windows. WIN+ Shift+M restores the minimized window.

WIN+ E opens my computer. WIN+ F searches for files or folders.

CTRL+WIN+ F search computer. WIN+ F1 displays Windows Help.

WIN+ L locks your computer if you are connected to a network domain, or switches users if you are not connected to a network domain. WIN+ R opens the Run dialog box.

KEY displays the shortcut menu of the selected item. WIN+ U opens Tool Manager.

4. SHIFT key on the right side of the keyboard shortcut key for eight seconds to switch the "filter key" on and off. Alt on the left+SHIFT+PRINT SCREEN on the left toggles High Contrast on and off.

alt on the left+SHIFT+NUM LOCK on the left toggles the mouse button on and off. Shift key switches the sticky key on and off five times.

press the num lock key for five seconds to switch the "switch key" on and off. WIN+ U opens the Tool Manager.

the END of the keyboard shortcut key in windows explorer displays the bottom of the current window. The home page displays the top of the current window.

the asterisk (*) on the num lock+numeric keypad displays all subfolders of the selected folder. The plus sign (+) on the NUM LOCK+numeric keypad displays the contents of the selected folder.

NUM LOCK+minus sign (-) of the numeric keypad collapses the selected folder. Left arrow key collapses the currently selected item when it is expanded, or selects its parent folder.

the right arrow key expands the currently selected item when it is collapsed, or selects the first item.

4. My mobile phone used to be connected with a wireless mouse and keyboard, but suddenly it can't be used. External connection

1. There may be something wrong with the u *** interface of the computer. It is recommended to replace other sockets and try to use them again.

2. There may be something wrong with the driver of the computer, so it is recommended to reinstall the driver.

3.

If replacing the USB port and replacing the mouse and keyboard label still can't solve the problem, it may be caused by insufficient power supply of the USB port. Let's right-click my computer, select Manage, find the device manager, and then expand the option of "connecting with

serial bus controller" to find the option of USB Root

Hub. Right-click it and then select Properties to find the power management option. By default, check the option "Allow the computer to turn off this device to save power" and remove this option.

4. It may be a problem with the mouse and keyboard, so it is recommended to replace it with another mouse or keyboard.

5. How to operate the keyboard without a mouse

You can find a lot of this question on Baidu, but I'll post it for you and attach the corresponding website. First, copy the purpose of conventional keyboard shortcuts with CTRL+C.

Ctrl+X cut. Ctrl+V paste.

Ctrl+Z undo. DELETE delete.

Shift+Delete permanently deletes the selected item without putting it in the Recycle Bin. Press CTRL while dragging an item to copy the selected item.

press CTRL+SHIFT while dragging an item to create a shortcut key for the selected item. F2 Rename the selected item.

CTRL+right arrow moves the insertion point to the beginning of the next word. CTRL+Left Arrow moves the insertion point to the beginning of the previous word.

CTRL+down arrow moves the insertion point to the beginning of the next paragraph. CTRL+up arrow moves the insertion point to the beginning of the previous paragraph.

CTRL+SHIFT+any arrow key highlights a piece of text. SHIFT+any arrow key to select multiple items in a window or desktop, or to select text in a document.

Ctrl+A selects all contents. F3 Search for files or folders.

Alt+Enter to view the properties of the selected item. Alt+F4 closes the current project or exits the current program.

ALT+Enter displays the properties of the selected object. Alt+spacebar opens a shortcut menu for the current window.

Ctrl+F4 closes the current document in a program that allows multiple documents to be opened at the same time. Alt+Tab switches between open projects.

Alt+Esc switches cyclically in the order in which the items are opened. F6 Cycle through screen elements in a window or desktop.

F4 displays the list of Address columns in My Computer and Windows Explorer. Shift+F1 displays the shortcut menu of the selected item.

Alt+spacebar displays the system menu of the current window. Ctrl+Esc displays the start menu.

the underlined letters in alt+menu names display the corresponding menus. The underlined letters in the command names displayed on the opened menu execute the corresponding commands.

F1 activates the menu bar in the current program. The right arrow key opens the next menu on the right or opens a submenu.

the left arrow key opens the next menu on the left or closes the submenu. F5 refreshes the current window.

BackSpace views the parent folder in My Computer or Windows Explorer. Esc cancels the current task.

press the SHIFT key when inserting a CD into a CD-ROM drive to prevent the CD from playing automatically. Second, the dialog box shortcut key purpose Ctrl+Tab moves forward between tabs.

Ctrl+Shift +Tab moves backwards between tabs. Tab moves forward between options.

Shift+Tab moves backwards between options. ALT+underlined letters execute the corresponding command or select the corresponding option.

Enter executes the command corresponding to the active option or button. Spacebar If the active option is a check box, select or clear the check box.

when the arrow keys are a set of option buttons, please select a button. F1 displays help.

F4 displays the items in the current list. BackSpace a folder is selected in the Save As or Open dialog box, the parent folder is opened.

third, natural KEYboard shortcuts in the "Microsoft natural keyboard" or other compatible keyboards with WINdows logo key (Win for short) and "Application" key (Key for short), you can use the following shortcut keys. Press WIN to show or hide the "Start" menu.

WIN+ BREAK displays the system properties dialog box. WIN+ D displays the desktop.

WIN+ M minimizes all windows. WIN+ Shift+M restores the minimized window.

WIN+ E opens my computer. WIN+ F searches for files or folders.

CTRL+WIN+ F search computer. WIN+ F1 displays Windows Help.

WIN+ L locks your computer if you are connected to a network domain, or switches users if you are not connected to a network domain. WIN+ R opens the Run dialog box.

KEY displays the shortcut menu of the selected item. WIN+ U opens Tool Manager.

4. SHIFT key on the right side of the keyboard shortcut key for eight seconds to switch the "filter key" on and off. Alt on the left+SHIFT+PRINT SCREEN on the left toggles High Contrast on and off.

alt on the left+SHIFT+NUM LOCK on the left.