例5-1源程序/*计算圆柱体积*I#include<stdio.h>int main( void )double height, radius, volume;*函数声明*/double cylinder (double r, double h);printf ("Enter radius and height:");scanf ("%lf%lf",&radius,&height);/*调用函数，返回值赋给volume*/volume = cylinder (radius, height ):printf ("Volume = %.3fln", volume);return O;1/* 计算圆柱体积 */ 例5-1源程序 #include <stdio.h> int main( void ) { double height, radius, volume; double cylinder (double r, double h); /* 函数声明*/ printf ("Enter radius and height: "); scanf ("%lf%lf", &radius, &height); /* 调用函数，返回值赋给volume */ volume = cylinder (radius, height ); printf ("Volume = %.3f\n", volume); return 0; }