Share interests, spread happiness,
Grow your knowledge and leave a good future!
Dear you, this is LearningYard.
Today, I bring you this
Xiao Gao shared (26) the selection control structure in the C language
Welcome to visit!
Share interests, spread happiness,
increase knowledge, and leave beautiful!
Dear you, this is LearningYard Academy.
Today, the editor brings you
Xiaogao Sharing (26) Selection control structure in C language
welcome your visit!
First, the basic concept
First, basic concepts
Choosing a control structure allows the program to execute different code paths based on specific conditions. In C, the choice control structure mainly includes if, else if, and else statements. These statements determine which piece of code to execute based on the true or false values of the expression.
The selection control structure allows the program to execute different code paths based on specific conditions. In C language, the selection control structure mainly includes if, else if and else statements. These statements determine which piece of code to execute based on the true or false value of the expression.
1. If statement: When the specified condition is true, execute the corresponding code block.
1, if statement: When the specified condition is true, execute the corresponding code block.
2. else if statement: When the condition of the if statement is false, you can continue to use else if to check other conditions.
2, else if statement: When the condition of the if statement is false, you can continue to use else if to check other conditions.
3. else statement: when all if and else if conditions are false, execute the code block in else.
3, else statement: When all if and else if conditions are false, execute the code block in else.
In addition, the switch statement is another choice control structure that allows multiple execution paths to be selected based on the value of the variable.
In addition, the switch statement is another selection control structure that allows multiple execution paths to be selected based on the value of a variable.
2. Application scenarios
Second, application scenarios
1. User input processing: Choose different actions or responses according to the user's input.
1, user input processing: according to the user's input to select different operations or responses.
2. Check: Check the error conditions in the program and take corresponding measures according to the type of error.
2, check: check the error conditions in the program, and take appropriate measures according to the error type.
3. State machine implementation: Use the selection control structure in complex state transition logic to simplify the code.
3, state machine implementation: Use selection control structures in complex state transition logic to simplify code.
4. Algorithm optimization: In the algorithm design, the optimal execution path is selected according to different situations.
4. algorithm optimization: In algorithm design, the optimal execution path is selected according to different situations.
III. Importance
Third, importance
1. Flexibility: By selecting the control structure, the program can perform different operations according to different conditions, which improves the program's adaptability to various situations.
1, flexibility: by choosing the control structure, the program can perform different operations according to different conditions, improving the adaptability of the program to various situations.
2. Readability: Reasonable use of the control structure can make the code structure clear, easy to understand and maintain.
2, readability: The rational use of the selection control structure can make the code structure clear, easy to understand and maintain.
3. Efficiency: When dealing with branch logic, choosing the control structure can reduce unnecessary calculations and improve the efficiency of program operation.
3, efficiency: when dealing with branch logic, the choice of control structure can reduce unnecessary calculations and improve the efficiency of program operation.
Choosing a control structure is a core component of C programming, which enables programs to perform different operations based on different conditions, thus achieving complex functions. Mastering the selection control structure is essential for C programmers, not only to improve the quality and efficiency of their code, but also to enhance the functionality and flexibility of their programs. When writing C programs, the correct and efficient use of selection control structures is a skill that every programmer needs to master.
The selective control structure is the core component of C programming, which enables the program to perform different operations according to different conditions, so as to achieve complex functions. It is very important for C programmers to master the selection control structure, which can not only improve the quality and efficiency of code, but also enhance the functionality and flexibility of the program. When writing C programs, the correct and efficient use of the selection control structure is a skill that every programmer needs to master.
That's all for today's sharing.
If you have a unique idea for today's article,
Welcome to leave us a message,
Let's meet tomorrow,
Have a great day!
That's it for today's sharing.
If you have a unique idea about today’s article,
Welcome to leave us a message,
Let us meet tomorrow,
I wish you a nice day today!
This article was originally written by LearningYard, if there is any infringement, please contact us.
Part of the content is referenced from bilibili, Baidu
Translation source: Tongyi Qianwen