mainO) (float radius,high,vol,pi=3.1415926; printf("Please input radius high:") scanf("%f%f",&cradius,&high);/*从键盘输入两个实数 赋给变量r,h*/ vol=pi*radius*radius*high; printf("radius-%7.2f,high=%7.2f,vol=%7.2fn", radius,high,vol); 程序演示] 程序运行结果如下： Please input radius high:1.502.0 radius=☐☐☐1.50，high=☐□☐2.00，vol=☐☐14.14 main() {float radius,high,vol,pi=3.1415926; printf("Please input radius & high: "); scanf("%f%f",&radius,&high); /*从键盘输入两个实数 赋给变量r,h*/ vol=pi*radius*radius*high; printf("radius=%7.2f, high=%7.2f, vol=%7.2f\n", radius,high,vol); } [程序演示] 程序运行结果如下： Please input radius & high: 1.5□2.0↙ radius=□□□1.50,high=□□□2.00,vol=□□14.14