?? salestag.c
字號:
// Borland C++ - (C) Copyright 1991 by Borland International
/* SALESTAG.C--Example from Getting Started.
SALESTAG.C calculates a sales slip. */
#include <stdio.h>
#define RATE 0.065 /* Sales Tax Rate */
float tax (float amount);
float purchase, tax_amt, total;
int main()
{
char inbuf [130];
printf("Amount of purchase: ");
gets(inbuf);
sscanf(inbuf, "%f", &purchase);
tax_amt = tax(purchase);
total = purchase + tax_amt;
printf("\nPurchase is: %f", purchase);
printf("\n Tax: %f", tax_amt);
printf("\n Total: %f", total);
return 0;
}
float tax (float amount)
{
return(amount * RATE);
}
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