if not defined

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Delphi compilation instructions (2): More methods for using conditional statements

1. $ ifdef is equivalent to $ if defined (...): They end with: $ endif and $ ifend. In this example, ver200 is the ID of Delphi 2009. Begin {$ ifdef ver200} showmessage ('this is Delphi 2009 '); {$ endif} {$ if defined (ver200)} showmessage

7 articles about exiting the program recommended

The following small series to bring you a C # in the implementation of the exit program after the automatic Restart program method. Small series feel very good, now share to everyone, also for everyone to make a reference. Follow the little part

Jvalidate jquery-based form verification plug-in

The validation rules of various form verification plug-ins on the Internet are written in scripts, but the validation rules of my plug-ins are written in the attributes of form elements. Example: CopyCode The Code is as follows: Note that

Batch File Sorting organizer

CopyCode The Code is as follows: @ echo off Title file category Organizer-test :: ========================================================== ========================================================== ===: Purpose:::: Sorts the files in the

Defined () or define (); What does that mean?

How do I define it without defining it? Is it similar to the if define in C language?? If you can find it in the PHP manual, please. Like what: defined('THINK_PATH') or define('THINK_PATH', dirname(__FILE__).'/'); Reply content: How do I

PHP source MVC Initialization class has a SetUrl method cannot run

PrivilegeAction.class.php Determining whether a constant is defined, if not defined, means that it is not the requested INDEX.PHPIF (!defined (' ACCESS ')) exit;//initializes class application{//1. Initialize the character set private static

PHP Detailed thorough learning smarty_php tutorial

Basic syntax All Smarty tags are added with delimiters. In Smarty, all content other than the delimiter is static, and when Smarty encounters a template tag, it tries to interpret them and then output them in the proper way. {and} are by default,

# If defined

Because for a largeProgramWe may need to define many constants (whether in the source file or header file), so when we sometimes consider defining a constant, we must return to check whether the original constant is defined, however, this is very

Jdk, tomcat, mysql, and innosetup Encapsulation

Jdk, tomcat, mysql, and innosetup package reference address: www.cnblogs.comxionghuiarchive201203222411207.html has been verified. Follow the steps to create a folder named exambody using the innoSetup installation package, apache-tomcat-6.0.33,

[C ++ exploration tour] Part 1 Lesson 8: pass value reference, file source

[C ++ exploration tour] Part 1 Lesson 8: pass value reference, file source Introduction 1. Part 1Lesson 8:Upload value reference, file source 2. Lesson 9 of the first part: array mighty, dynamic and static Integration Upload value reference, file

Linux shell Programming-bash artifice

This article focuses on the parts of the bash script that are prone to errors and rarely used but have unexpected effects.Cycle:Normal for loop: for inch a B C 1 2 3 do Echo " $i " DoneNumber sequence loop: for in 'seq-do- echo'$i'done The '

Indispensable Windows Native (1)-C language: Hello C

[SOURCE DOWNLOAD]Indispensable Windows Native (1)-C language: Hello CWebabcdIntroducedEssential C language of Windows Native To call C + + in Windows Store Apps Hello C Example1. Demonstrates how to call C + + in Windows Store Apps

Batch code that implements alternating output between two text peers _dos/bat

There are two texts as follows (in practice you do not know how many lines are in each of the two texts): Text

NVCC fatal:unsupported GPU Architecture ' compute_11 '

When compiling the source code with VS compilation OpenCV, the CMake-generated engineering file compiles, and the NVCC fatal:unsupported GPU architecture ' compute_11 ' problem occurs. The reason is that CUDA7.5 does not support older graphics

Folder Hidden property Cannot modify workaround

Symptoms: U disk in the poisoned computer after use, the folder inside disappeared, this is because the folder properties inside is changed to hide properties. The hidden properties of all hidden folders are locked and cannot be changed by

Pre-compilation and macro-definition __c++ for C + +

Precompilation is the first step in the entire compilation process and is the result of the g++-e option output. This step deals with the macros in the source file/header file, which are commonly used in the following categories: file contains:

String manipulation tips in the bat file

Write the bat file today, you need to connect two strings, but there are errors. The reason is this Set vscomntools= "%vs140comntools%" If not DEFINED "%vcinstalldir%" (Call "%vscomntools%vsvars32.bat") The path that is actually called after call is

JValidate jQuery-based form verification plug-in

There are already many jQuery-based form verification plug-ins on the Internet, but I will continue to do this, this is because the form verification plug-in has moved the value from my previous Personal JS framework (I have been slowly investing in

[Turn] Gradle: There should be no androidandroid-studiosdk oolslib\find_java.exe at this time. Workaround

The above problem is mainly the Java path problem, here is the main solution, as for why so solve, you can learn the bat language. If you want to ask me, you can leave a message.Dx.bat according to the installation directory, my is D:\Program Files (

Installing HBase tutorials under WIN10

Work needs, now began to big data development, through the following configuration steps, you can deploy a set of hadoop+hbase in the WIN10 system, convenient for single-machine test debugging development.Preparation information:1.hadoop-2.7.2:https:

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