第四讲： C语言程序设计初体验_四、程序设计实操:(20分) 在calculable接口中声明 area和perimeter两个分别-优快云博客

本文链接：https://blog.youkuaiyun.com/Yuenachen/article/details/44896467

本文深入探讨了编程基础至高级的实用技巧与代码实现，涵盖了从控制台输出到复杂算法应用等多个方面。通过具体实例，如计算面积与周长、电阻计算、温度转换及几何体表面面积计算，展示了编程解决实际问题的能力。同时，文章强调了编程过程中的细节处理，如小数点位数的精确控制，体现了作者对编程细节的重视。

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/*Exercise 1: last name dot matrix*/

int main()
{
    printf("         *    *          *  **********  *           *    \n");
    printf("      *       *          *  *           * *         *    \n");
    printf("    *         *          *  *           *  *        *    \n");
    printf("  *           *          *  *           *   *       *    \n");
    printf(" *            *          *  *           *    *      *    \n");
    printf("*             ************  **********  *     *     *    \n");
    printf("*             *          *  *           *      *    *    \n");
    printf("*             *          *  *           *       *   *    \n");
    printf(" *            *          *  *           *        *  *    \n");
    printf("   *          *          *  *           *         * *    \n");
    printf("      *       *          *  *           *          **    \n");
    printf("          *   *          *  **********  *           *    \n");


}

/* Exercise 2 (1): calculate area and perimeter*/

int main()
{
    float a,b,area,pmeter;
    printf("Please insert length a & b: ");
    scanf("%f %f",&a,&b);
    pmeter=(a+b)*2;
    area=a*b;
    printf("The perimeter is %f\n",pmeter);
    printf("The area is %f\n",area);
    return 0;
}

/*Exercise 2 (2): calculate resistance */

int main()
{
    float a,b,r;
    printf("Please insert R1 & R2: ");
    scanf("%f %f", &a,&b);
    r=1/(1/a+1/b);
    printf("The resistance R is: %f\n",r);
    return 0;
}

/*Exercise 2 (3): convert C to F */

 int main()
 {
     float c,f;
     printf("Please insert temperature in Celsius: ");
     scanf("%f",&c);
     f=c*9/5+32;
     printf("%f Celsius is %f Fahrenheit \n",c,f);
     return 0;
 }
/* Exercise 2(4): calculate area for cylinder*/

int main()
 {
     float r,h,a;
     printf("Please insert radius R and height H: ");
     scanf("%f %f",&r,&h);
     a=2*3.1415926*r*h+2*3.1415926*r*r;
     printf("The surface area is: %f\n",a);
     return 0;

 }