Page 36-C#.Net Tutorial Programming Tutorials: Learn C#.Net Tutorial Online-php.cn

Article Tags

Home

Technical Articles

Backend Development

C#.Net Tutorial

How to use auto in c language

The auto keyword is used to declare local variables, which are stored in the function stack memory. Its features include: local scope, automatic storage duration, initializability, storage location unlike register, and optimization. auto is often used to declare temporary variables or local variables that do not require access outside the function.

May 09, 2024 am 10:57 AM

c语言作用域

How to use static in c language

In C language, the static keyword is used to modify a variable, function, or class member so that it has a static scope and has the following characteristics: Internal linkage: It can only be accessed or called in the file in which it is declared. Retain values: Variables and local function variables retain their values until the end of the program. Class scope: Class members belong to the entire class, and all instances share the same data. Constants: static const class members can be declared as compile-time constants.

May 09, 2024 am 10:48 AM

c语言作用域

Common keywords in c language

Keywords in C language are predefined special words used for specific purposes. Common keywords include: data type (int, float, double, char), control flow (if, else, for, while, do...while, switch, break, continue), function (main, return, void), Scope (auto, extern, static, register), others (typedef, sizeof, const, volatile, struct, union, enum).

May 09, 2024 am 10:45 AM

c语言作用域 typedef

The function of break in c language

The break statement is used to exit a loop or switch statement. Execute break in the loop to immediately terminate the loop. Execute break in the case branch of the switch statement to jump out of the switch statement.

May 09, 2024 am 10:39 AM

c语言

The role of long in c language

The long type is used in C language to store a larger range of integers than the int type. It is mainly used for: storing integers beyond the range of int. Stores higher precision integers because they usually have a larger bit width. Store pointer variables, which usually need to store larger address values.

May 09, 2024 am 10:36 AM

c语言

The role of enum in c language

enum is a keyword in C language to create an enumeration type, which is used to represent a series of named constants. It is used through the following steps: Define the enumeration type: enum Enumeration type name {constant1, constant2, ..., constantn} Declare the enumeration type variable assignment and use the enumeration value Enumeration type provides readability, type Security, code reuse, and memory efficiency benefits.

May 09, 2024 am 10:33 AM

c语言

The role of for loop in c language

A for loop is a control flow statement used to repeatedly execute a block of code until a specific condition is met. Its main functions include: repeatedly executing code blocks; traversing data structures; performing a specific number of operations.

May 09, 2024 am 10:30 AM

c语言

10How to express in c language

There are two ways to represent hexadecimal numbers in C: prefix form (prefixed with 0x, followed by a hexadecimal number) and postfix form (prefixed with a U suffix after the hexadecimal number). Hexadecimal numbers use 0 to F (uppercase and lowercase letters represent the same value), the 0x prefix is required in the prefix form, and the U suffix is optional in the postfix form.

May 09, 2024 am 10:27 AM

c语言

How to use typedef struct in c language

The typedef keyword is used to create aliases for custom data types, allowing the names of complex structures to be simplified. The usage steps are as follows: create a custom data type (such as a structure); use typedef to give it a new name (alias); use aliases to replace the original data type name to improve code readability, reduce redundancy and ease maintenance.

May 09, 2024 am 10:21 AM

c语言代码可读性 typedef 标准库

The role of typedef in c language

typedef is used in C language to create a new data type alias to improve code readability, maintainability and portability. Its syntax is: typedef <existing data type> <new data type name>. For example, typedef int my_int; creates an alias named my_int, which is actually the int data type.

May 09, 2024 am 10:18 AM

c语言 typedef

Usage of typedef struct in c language

typedef struct is used in C language to create structure type aliases to simplify the use of structures. It aliases a new data type to an existing structure by specifying the structure alias. Benefits include enhanced readability, code reuse, and type checking. Note: The structure must be defined before using an alias. The alias must be unique in the program and only valid within the scope in which it is declared.

May 09, 2024 am 10:15 AM

c语言作用域 typedef

How to use inline in c language

The inline keyword is used to declare a C language function as an inline function. By directly inserting the function code into the calling point, it eliminates the function call overhead and improves execution efficiency. However, it should be noted that inline functions may lead to code bloat and difficulty in debugging, so they are suitable for scenarios where the function body is small, frequently called, and expensive.

May 09, 2024 am 10:12 AM

c语言

The role of extern in c language

The extern keyword is used in C language to declare externally defined variables, functions or other symbols to avoid repeated definition errors and enhance code scalability. It allows an external symbol to be declared, allocated memory and referenced in the current source file even if it is not exactly defined.

May 09, 2024 am 10:09 AM

c语言

How to use goto statement in c language

The goto statement in C language allows the program to jump to any location in the code, but it is recommended to avoid its use because it is difficult to maintain, debug, and violates structured programming principles. Instead, it is recommended to use more structured control flow statements such as break, continue, switch, loops, and conditional statements.

May 09, 2024 am 10:00 AM

c语言