用宏定义求矩形的面积和周长,求C语言编程,感激不尽答:include<stdio.h> define Premeter(a,b) 2*(a+b)define Area(a,b) a*b int main(){ double a,b;printf("请输入矩形的长和宽:\n");scanf("%lf%lf",&a,&b);printf("矩形的周长为%lf\n",Premeter(a,b));printf("矩形的面积为%lf\n",Area(a,b));return 0;} ...
用C语言编译计算长方形面积答:void main(){ float a,b;printf("输入长方形的边长a,b,\n");scanf("%f%f",&a,&b);printf("%f\n",a*b);} include<stdio.h> float main(){ float a,b;printf("输入长方形的边长a,b,\n");scanf("%f%f",&a,&b);Printf("%f\n",2a+2b);} 还可以计算矩形的面积:include<...