editors keys

primary key is a selected candidate key. I understand what is a candidate keyTake a look at the question firstIn the SQL Server database, there is a student information table as follows. In this table, the attribute set that cannot be used as the candidate key is () (select one)Student ID name gender age Division Major20020612 Li Hui male 20 Computer Software Development20060613 Zhang mingnan 18 Computer Software Development20060614 Wang Xiaoyu female 19 physical mechanics20060615 Li Shuhua, fe

Tips for using Mac machine express keys and mac express keys 1. Hide the shortcut key for displaying the dockCmd-opt-d 2. How to quickly call up the command terminal or call up other programsBy installing Alfred, Alfred is a powerful weapon-Alfred 3. After the Dock is hidden, move the mouse over it. When the Dock is displayed, there is a slight delay.You can use the following terminal commands to make adjus

Common Vim shortcut keys and keyboard diagrams, and vim shortcut keys and keyboards Common Vim shortcut keys H-move the cursor one character left. j-move the cursor one character down. K-move the cursor up one character l-move the cursor down one character to 15 rows-15j Ctrl + f-move one page down on the screen Ctrl + d-move half page down Ctrl + B-move one pag

The most common shortcut keys of intellij idea and the shortcut keys of intellijidea Most common shortcut keys * Add a copy to favorites. 1. Ctrl + E to display the list of recently edited files2. Shift + Click can close the file3. Ctrl + [or] can jump to the beginning and end of braces4. Press Ctrl + Shift + Backspace to jump to the Last edited location.5. Pres

From: http://hongzhguan.iteye.com/blog/1479563 Solution 1: Problem: In ubuntu, the direction keys cannot be used when VI is being edited, and the return keys cannot be deleted. Solution: You can install the vim full version. In the full version, the keyboard is normal. After installation, use the VI command. Install VIM: Ubuntu is pre-installed with the vim tiny version, but requires the vim fu

Comrades who use a normal non-MAC-brought keyboard and want to use the keyboard on a Mini Mac, it is recommended to use the virtual keyboard that comes with the Mac system, so you can see what's on the Mac system for each key on the normal keyboard.Here's how to view the virtual keyboard on your Mac system:There is an option to show the hidden virtual keyboard. Click this menu to display the virtual keyboard that comes with your Mac system on your desktop.If you don't see or hide the virtual key

PowerWord 2006 to the "Take the word switch" shortcut keys to change to other.The F7 is returned from inside the function to the call point.F8 continues to the next breakpoint.Alt+shift+r renamingAlt+shift+m Extraction MethodAlt+shift+c Modify the function structure (more practical, there are n functions called this method, modified once done)Alt+shift+l extracting local variablesAlt+shift+f change the local variable in class to a field variableAlt+s

incremented)Ctrl+alt+↑ Copy the current line to the previous row (replication incremented)Alt+↓ the current line and the next line of interaction (especially useful, can be omitted first cut, then pasted)Alt+↑ the current line and the upper row interaction position (IBID.)Ctrl+l positioning in a row (for people with programs over 100 have the gospel)Ctrl+t quickly displays the inheritance structure of the current classCtrl+j forward Incremental lookup (after pressing CTRL+J, each letter editor

Win10 common Shortcut Keys Daquan win8/8.1 common shortcut keys to share, win10win8 For more information about win10 shortcuts For more information about the win10 shortcut keys, today's mini series bring frequently used win10 shortcut keys. Many friends like to use the shortcut ke