define webdav

We usually define non-constant values as constants, which are generally represented in all capitals, with no dollar sign in front of them, and can reduce errors in team development. So what's the difference between a define and a const?1, const is a language structure, and define is a function that can be specified by the third argument for case sensitivity. True

About define (' Discuz_root ', substr (DirName (__file__), 0,-7)); Understanding define (' Discuz_root ', substr (DirName (__file__), 0,-7)) ;Get site root directoryFor the above statement has not understood what is meant to check the relevant information a little closedFirst: This statement consists of three functions of define (), substr (), DirName ()1.

For example: Here the program file starts with the following #define statement Copy Code code as follows: #define N 10 #define PI 3.14 #define MAX 10000 #define HEIGTH 6.65 ... ... Let's say the program is running an error, and if we have

1. Const is used for class member variable definition, once defined and cannot change its value. Define defines global constants that can be accessed everywhere.2. Define cannot be defined in a class and const can.3. Const cannot define constants in conditional statementsif (... { const FOO = ' BAR '; // if (..... ) {

css|frontpage| Tips When many people find it convenient to define CSS in DW4, they start complaining that FP2000 can't define CSS, or even criticize how bad FP2000 is. In fact, it's easy to define CSS in FP2000, even in some ways it's easier to define than DW4! 　　Define styl

1. Define a simple constant: Define a constant to facilitate modification. (do not add a semicolon to the end !) # Define n 1000 It is equivalent to const int n = 1000, but slightly different. Define is a simple replacement instead of a quantity. 2. Define simple functions:

1. Simple define Definition# Define maxtime1000A simple maxtime is defined. It represents 1000. If you writeIf (I The compiler replaces maxtime with 1000 before processing this code.This definition looks similar to a normal constant definition const, but it is also different, because the definition of define is more like a simple text replacement, rather than bei

Original article address: Http://blog.csdn.net/kindazrael/article/details/8108868 Objective-C: # define Usage Analysis In C, Preprocessor is a powerful tool that makes your code easier to read and modify. With preprocessing code, you can redefine a part of the code to make your code more suitable for your style. Preprocessor is processed in advance before the code is compiled. The pre-processing code starts with a pound sign.1. About #

Copyleft of this document belongs to yfydz and can be freely copied and reproduced when published using GPL. It is strictly prohibited to be used for any commercial purposes. MSN: yfydz_no1@hotmail.com In Linux, netfilter provides a firewall framework with good scalability. In addition to the built-in modules, users can define new firewall modules according to their own needs. The programming process is not very complex, as long as it can be modified

Before introducing inline functions, it is necessary to introduce preprocessing macros. Functions of inline functions and preprocessing of macros Similar functions. We believe that we have used preprocessing macros. We often define some macros, such # Define table_comp (x)> 0? (X): 0) A macro is defined. Why use Macros? Because the function call must transfer the execution order of the program to the Functi

For example, the program file starts with the following # define statement. Copy codeThe Code is as follows: # define N 10 # Define PI 3.14 # Deprecision MAX 10000 # Define Heigth 6.65 ... ... If the program runs an error here, and there is an error when we use these constants, the editor should throw an error message

This article mainly introduces how to use hidef extension in PHP to replace define to improve the performance. This article focuses on testing the performance of hidef and introduces the installation method and examples, if you need a new constant, you can refer to the website to open the local config. php file, think of hidef tested a few years ago and apc to improve define performance. In my program, the