英制单位转换

#include<stdio.h>
#define Mile_to_meter 1609 //1英里等于1609米
#define Foot_to_centimeter 30.48 //1英尺=30.48厘米
#define Inch_to_centimeter 2.54 //1英寸=2.54厘米
int main(){
float foot,inch,mile;
printf("Input mile,foot and inch:");
scanf("%f%f%f",&mile,&foot,&inch);
printf("%f miles=%f meters\n",mile,mile*Mile_to_meter);
printf("%f feet=%f centimeters\n",foot,foot*Foot_to_centimeter);
printf("%f inches=%f centimeters\n",inch,inch*Inch_to_centimeter);
return 0;
}