global variable declaration in c

1, can local variables and global variable duplicate? A: Yes, the local will screen the overall situation. To use a global variable, you need to use the "::" Local variables can have the same name as global variables, and when referenced within a

Php array declaration, traversal, array global variables. Php Tutorial array declaration, traversal, array global variable [php]? ** 1. Array Overview * 1. the essence of arrays: managing and operating a group of variables, batch processing * 2.

1. Can a local variable be renamed with a global variable? A: Yes. Global blocking will be performed in some cases. To use global variables, you must use "::" A local variable can have the same name as a global variable. A local variable with the

Original: http://www.cnblogs.com/GavinDai/archive/2011/10/24/2222735.htmlWe are in the program design, always use the definition of variables and the declaration of variables, but sometimes we are not very clear about the concept, know how it is

(1) compilation unit (module)Compile the code on VC or VS and click the compile button to generate the exe file. The Compiler performs two steps: Step 1: compile each. cpp (. c) and the corresponding. h file into an obj file;Step 2: link all the

Original blog, reprint please indicate the source--Zhou Xuewei http://www.cnblogs.com/zxouxuewei/Static is used in two ways: static in process-oriented programming and static in object-oriented programming. The former applies to ordinary variables

PHP Tutorial: Array declaration, traversal, array global variables Copy CodeThe code is as follows: /* * First, an overview of arrays * 1. The nature of the array: managing and manipulating a set of variables, batch processing * 2. Compound type

Original link: http://blog.csdn.net/candyliuxj/article/details/7853938(1) Compilation unit (module)After compiling the code on VC or VS, and clicking the Compile button to prepare the EXE file, the compiler does two steps:The first step: compile

Static can be used in either of the following ways:Process-orientedProgramDesignStatic andObject-Oriented ProgrammingStatic. The former applies to common variables and functions, and does not involve classes. The latter mainly describes the role of

Global variables in Lua do not need to be declared for use. This is handy for small programs, but a simple clerical error in a large program can cause hard-to-find bugs.However, this performance can be changed. Because LUA places global variables in