how to use f keys on laptop

This article mainly introduces how to use dictionary keys in Python. it is a basic knowledge in getting started with Python. if you need a dictionary key, you can refer to the dictionary key. The value in the dictionary has no restrictions. it can be any Python object, that is, from a standard object to a user-defined object. However, the keys in the dictionary

Whether foreign keys are used to look at business scenarios, as well as development costs, are roughly listed at what time and when not suitable for use:1. Internet industry applications do not recommend the use of foreign keys: large user volume, high concurrency, this database server can easily become a performance b

Computer operation in the shortcut keys used well, is a master of one of the signs. Photoshop also has a lot of shortcuts, and with it, you've made a big step toward the goal of the Photoshop master. Often have friends to ask: Photoshop inside the So-and-so shortcuts is what ah? Online also has a lot of posts have been introduced, as long as firmly remember and good at regular use, practice, practice, not

Sublime Text 3 plugin installation and use of shortcut keys 1. Download and install sublime Text3 To the official website https://www.sublimetext.com/3 download, the fool installs, here omits the thousand words, then opens can use. 2. Install the package Control Use CTRL + ' shortcut

(), you just enter SYSO and then use this shortcut to press ENTER, and then you want to overwrite the parent class's ToString () method , you only need to enter to and then use this shortcut key to press ENTER; If you want to use a class without import (such as calendar), you just need to enter the CA and use this sho

, when the user in the window to operate, always feel that the current window is small (especially when writing code), now good, try "ctrl+m" shortcut keys.Viewing and locating shortcut keysIn the program, quickly locate the location of the code, quickly find the place where the bug is very difficult, Eclipse provides a powerful search function, you can use the following shortcut keys to help complete the j

Adconf.java to Adquaryserviceimpl.java Before: After: Vice versa. 3, Ctrl + F6, in the current file to display all currently open files I personally like Ctrl + E this way. Second trick: Copy the current line or the currently selected code block In eclipse, if you need to copy a row without using CTRL + C, you just need to use CTRL + Alt +↓. Note that this shortcut is usually a conflict and can be modified on the

The use of foreign keys in MySQL to implement cascade Delete, updateMySQL supports foreign key storage engine only InnoDB, when creating foreign keys, requires the parent table must have a corresponding index, the child table when creating foreign keys will also automatically create the corresponding index. When you cr

name, experience a bit moreThe benefits of "alt+/" shortcut keys.2. "Ctrl+o"shows an outline of the methods and properties in a class that quickly locates the methods and properties of a class and is useful for finding bugs.3. "Ctrl+/"Quickly add comments, you can quickly add a comment or uncomment the line or selected line of the cursor, while debugging may always need to comment on something or uncomment, now well, do not needRepeat the comments fo

Good tools can help us improve our development efficiency, we can use tools to do things as far as possible, so that our development as far as possible automation is the key factor to improve development efficiency. Many people have used resharper, but also by the ReSharper super many shortcut keys to be impressed, this article I summed up the actual use of sever

10 most useful shortcut key combinations in eclipseAn eclipse-level developer summarizes what he thinks is the most useful but less known shortcut key combination. These combinations make it easier to navigate through the source code, resulting in improved overall development efficiency and quality.1. Ctrl+shift+r: Open ResourceThis is probably the most time-saving combination of all shortcut keys. This set of shortcuts lets you open any file in your

In the current layer, perform "edit"-"free transform", or use the PS Free transform shortcut key ctrl+t, there will be a transform control bounding box around. When we use the PS Free transform shortcut key ctrl+t, open the free transform, then with CTRL, Shift, ALT, you can zoom, rotate, perspective, and so on. Where the CTRL key controls the free change; Shift control direction, angle and equ

In the current layer, perform "edit"-"free transform", or use the PS Free transform shortcut key ctrl+t, there will be a transform control bounding box around. When we use the PS Free transform shortcut key ctrl+t, open the free transform, then with CTRL, Shift, ALT, you can zoom, rotate, perspective, and so on. Where the CTRL key controls the free change; Shift control direction, angle and equ

SummaryThis article is mainly about the use of Redis Scan command to meet some of the problems summarized, the scan command itself is not a problem, mainly spring-data-redis problem.DemandYou need to traverse the key in Redis to find all keys that match some pattern. The first reaction is of courseKEYS "ABC*You can find all keys with a prefix of ABC, TIME Complex

Simple use of OpenSSL to generate secret keys To add SSL to servers such as Postfix and Apache, enhance the security factor, You need to use certificate (certificate). This certificate can be obtained from the official ca. Or you can generate one by yourself, The first step is to generate a Certificate Signing Request (CSR) In this way, you can submit the CSR to

Under Linux, the status of Bash is negligible, and the daily management and operation of Linux is mostly done in bash, so in order to improve the productivity of Linux, it becomes the problem of how to use bash efficiently. While some of the special characters under the shell can be used to some extent to improve efficiency, the latter's historical expansion under Bash can also be much more efficient, but some of the shortcuts on bash are the simplest

How to Use Vault secure storage passwords and API keys Vault is a secure tool for obtaining confidential information. It can store information such as passwords, API keys, and certificates. Vault provides a unified interface to access secret information. It has a robust access control mechanism and rich Event Logs. It is difficult to authorize access to key infor

text attachment's bright ball to inactive.There will be no bright balls to indicate special events, but you can still use Alt-enter shortcut keys.12, when using Codecompletion, you can use a comma (. ) character, comma (,) semicolon (;), spaces, and other characters enter the current highlighted part of the popup list. The selected name is automatically entered

QQ Input Method How to use shortcut keys? To use the QQ Input method of shortcut keys, we must select the QQ input method of the properties of a certain set. Click on the input status bar of the small wrench button, and then in the pop-up screen click "Property Settings", open the QQ Input Method property Settings di

What is a keyboard accelerator key? Accelerators are key combinations that produce WM_COMMAND messages (in some cases, wm_syscommand). In many cases, the program uses an accelerator key to repeat the action of a common menu item (however, the accelerator key can also be used to run non-menu functions). For example, many Windows programs have an Edit menu that contains a Delete or clear option, which is used to specify the DEL key as the accelerator key for that option. The user can select the D