c语言小程序代码大全

以下是一些常见的C语言小程序示例代码：

1. Hello World

#include <stdio.h>

int main() {
    printf("Hello World!");
    return 0;
}

2. 求和

#include <stdio.h>

int main() {
    int a, b, sum;

    printf("Enter two numbers: ");
    scanf("%d %d", &a, &b);

    sum = a + b;

    printf("Sum of %d and %d is %d", a, b, sum);
    return 0;
}

3. 判断奇偶数

#include <stdio.h>

int main() {
    int num;

    printf("Enter a number: ");
    scanf("%d", &num);

    if (num % 2 == 0) {
        printf("%d is even", num);
    } else {
        printf("%d is odd", num);
    }

    return 0;
}

4. 判断闰年

#include <stdio.h>

int main() {
    int year;

    printf("Enter a year: ");
    scanf("%d", &year);

    if ((year % 4 == 0 && year % 100 != 0) || year % 400 == 0) {
        printf("%d is a leap year", year);
    } else {
        printf("%d is not a leap year", year);
    }

    return 0;
}

5. 计算阶乘

#include <stdio.h>

int main() {
    int num, i, fact = 1;

    printf("Enter a number: ");
    scanf("%d", &num);

    for (i = 1; i <= num; i++) {
        fact *= i;
    }

    printf("Factorial of %d is %d", num, fact);
    return 0;
}

这些只是一些简单的示例，C语言可以用于开发更复杂的应用程序，如果您想了解更多，请参考相关的教程和文档。