C语言常量实例 C语言strlen函数 C语言limit.h实例 C语言常量实例 /* pizza.c -- uses defined constants in a pizza context */ #include <stdio.h> #define PI 3.14159 int main(void) { float area, circum, radius; printf("What is the radius of your pizza?\n"); scanf("%f", &radius); area = PI * radius * radius; circum = 2.0 * PI *radius; printf("Your basic pizza parameters are as follows:\n"); printf("circumference = %1.2f, area = %1.2f\n", circum, area); return 0; } C语言strlen函数 C语言limit.h实例