if..else4.cpp

C语言考试资料 C语言考试资料

#include <stdio.h>
void main()
{
	int p;
	float o,rate=0.0;
	printf("\n please enter the product code:");
	scanf("%d",&p);
	printf("\n please order amount");
	scanf("%f" ,&o);
	if (p==1)
	{
		if (o>=500)
			rate=0.12;
		else if (o>=300)
			rate=0.08;
		else
			rate=0.02;

	}
	else if(p==2)
	{
		if (o>=2000)
			rate=0.10;
		else if (o>=1500)
			rate=0.05;
		else if (o<=1500)
			rate=0.03;

	}
	else if (p==3)
	{
		if (o>=5000)
			rate=0.10;
		else if (o>=2500)
			rate=0.05;

	}
	o-=o*rate+1000;// o=o-(o*rate+1000);
	printf("\n the net order amount is %.2f\n",o);

}