C Programming Unveiled: A Gentle Introduction to its Potential

The C programming language is general-purpose, structured and process-oriented, and is widely used in various fields. Its basic syntax includes functions, variables (such as int, float, char), conditional statements (if, else), and loops (for, while, do-while). A practical example shows how to write a C program to calculate the average score.

C Programming Revealed: Tap into Its Unlimited Potential

Introduction

C Programming The language is a general-purpose, structured and procedure-oriented programming language known for its power and efficiency. It is widely used in various fields, from operating system development to embedded system programming. This article will provide a beginner's guide to C language and take you to the door of its potential.

Basic syntax

C programs are composed of functions and variables. Every program starts with a main() function and is executed there. Variables are used to store data, and their types include int (integer), float (floating point number), and char (character).

// 一个简单的C程序
#include <stdio.h>

int main() {
    int age = 25; // 整型变量，存储年龄
    float salary = 10000.50; // 浮点变量，存储薪水
    char name[] = "John"; // 字符数组，存储名字

    printf("年龄：%d\n", age); // 打印年龄
    printf("薪水：%.2f\n", salary); // 打印薪水，保留两位小数
    printf("名字：%s\n", name); // 打印名字

    return 0;
}

Conditional Statements

C language uses if, else and else if statements to control program flow. These statements check whether a condition is true and execute different blocks of code depending on the result.

// 检查年龄并打印响应消息
if (age >= 18) {
    printf("您已成年。\n");
} else {
    printf("您未成年。\n");
}

Loops

C language provides for, while and do-while loops to repeatedly execute blocks of code.

// 使用for循环打印1到10的数字
for (int i = 1; i <= 10; i++) {
    printf("%d ", i);
}

Practical case: Calculate the average score

Write a C program to get 5 scores from the user and calculate the average score.

#include <stdio.h>

int main() {
    int scores[5];
    float sum = 0;

    // 获取5个分数
    for (int i = 0; i < 5; i++) {
        printf("输入第%d个分数：", i+1);
        scanf("%d", &scores[i]);
        sum += scores[i];
    }

    // 计算平均分
    float average = sum / 5;

    // 打印平均分
    printf("平均分：%.2f\n", average);

    return 0;
}

Conclusion

This article provides a brief overview of the C language, covering basic syntax, conditional statements and loops. Through practical cases, you can experience the powerful functions of C language and inspire your programming journey.

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