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function values and simple valuesDo not assign bindings
Let's take a look at this simple function: Let 1What does "X" mean? "X" means:1: Receive some values from the input domain2: We can first use the name "X" to represent the value so that
1 OverviewUsed preprocessing commands starting. For example, include the command # include and macro definition command # define. In the source program, these commands are placed outside the function, and are generally placed before the source file.
One.#define是C语言中提供的宏定义命令, the main purpose is to provide programmers with certain convenience in programming, and to a certain extent, improve the efficiency of the program, but students often do not understand the nature of the command in learning,
There are many places in the C language where macro definitions are used, such as in header files to prevent header files from being repeatedly included:
#ifndef ctest_header_h
#define CTEST_HEADER_H
/header file content
#endif
Many macro
OC-class definition and oc-DefinitionWe have already introduced a program HelloWorld: Keep in OC.
The biggest difference between OC and C is that it has the Object-Oriented function. When it comes to object-oriented, we have to talk about the class
Macro definition in C # define usage,
# Define is a macro definition Command provided in C language. Its main purpose is to provide programmers with some convenience in programming and improve the program running efficiency to a certain extent,
"0" written in front0.1) The purpose of this code:The purpose of this text is to explain the function of the local descriptor, its definition, initialization and jump, etc.0.2)The personal summary at the end of the article is dry, the preceding code
C ++ File include rule constant definition
To sum up, C ++'s function declaration, variable declaration, and class definition are written in the header file, while function implementation, variable definition, and class method implementation are
The 5th Chapter uses function encapsulation program functionAfter completing the powerful payroll program V1.0, we doubled our confidence and began to explore further afield in the C + + world.Now, we can use a variety of data types to define
I found a small problem when writing a program today, as shown below:
1 #include 2 #include 3 4 using namespace std; 5 template 6 class Node 7 { 8 private: 9 Node *next;10 public:11 T data;12 Node(const T&
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