程序代码：

#include<stdio.h>
int main (void)
{
  const float Revenue_Per_150=4.5f;
  short JanSold=23500;
  short FebSold=19300;
  short MarSold=21600;
  float RevQuarter=0.0f;

  long QuarterSold=JanSold+FebSold+MarSold;

  printf("\nStock sold in\n Jan: %d\n Feb: %d\n Mar: %d\n",
         JanSold,FebSold,MarSold);
  printf("\nTotal stock sold in first quarter: %ld",QuarterSold);
  RevQuarter=QuarterSold/150*Revenue_Per_150;
  printf("\nSales revenue this quarter is:$%.2f\n",RevQuarter);
  getch();
  return 0;
}