作业5 指针应用1

//调用指针计算两个数的和与差
#include<stdio.h>
void sum_diff(float op1, float op2, float *psum, float *pdiff);
int main()
{
float op1,op2,psum,pdiff;
printf("enter op1 op2:");
scanf("%f%f",&op1,&op2); //float是%f 
//调用自定义函数 
sum_diff(op1,op2,&psum, &pdiff);
printf("*pusm=%.2f,*pdiff=%.2f",psum,pdiff); //保留两位小数 
return 0;
} 
void sum_diff(float op1, float op2, float *psum, float *pdiff)
{
	*psum=op1+op2;
	*pdiff=op1-op2;
	
}