#inlclude<stdio.h>
#define HEG 0.53
int main(void)
{
float mather,father,son=0.2f;
printf("\n请输入父亲的身高：");
scanf("%f",&father);
printf("\n请输入母亲的身高：");
scanf("%f",&mather);
son=(father+mather)*HEG;
///printf("%2f" ,son);
///son=son*HEG;
printf("\n您们的儿子身高大约是%2f",son);
return 0;
}

楼主好，请问第二行#define HEG 0.53是，什么意思，小白求解，