ex4_6.cpp

c++编写的关于课程管理系统的软件

// Note:Your choice is C++ IDE
#include "iostream.h"
int abs(int x)
{
	return(x>0?x:-x);
}
float  abs(float  x)
{
	return(x>0?x:-x);
}
double abs(double x)
{
	return(x>0?x:-x);
}
void main()
{
	cout<<"-10的绝对值是："<<abs(-10)<<endl;
	cout<<"-123.45的绝对值是："<<abs(-123.45)<<endl;
	cout<<"-321.456e+03的绝对值是："<<abs(-321.456e+03)<<endl;

}