我一直在研究一个程序，它将对音频、SPL 等进行一些方程式。
我决定让主类文件向用户提供一个选项来选择他想要做的方程，而方程则存放在另一个类文件中。
Atm，设置主类文件只是为了测试 maxPeakSPL()，但我无法让它运行。
主文件
//Kh[a]os
#include "equations.h"
#include <iostream>
void mainLoop();
int maxSPL = 0;
int main()
{
std::cout << "Created by Kh[a]os" << std::endl << std::endl;
mainLoop();
return 0;
}
void mainLoop()
{
std::cout << "hi";
maxSPL = equations::maxPeakSPL();
std::cout << std::endl << maxSPL << "db" << std::endl << std::endl;
}
方程.h
#ifndef EQUATIONS_H
#define EQUATIONS_H
#include <string>
class equations
{
public:
equations();
static int maxPeakSPL();
protected:
private:
};
#endif // EQUATIONS_H
方程.cpp
#include "equations.h"
#include <iostream>
#include <string>
equations::equations()
{
}
static int maxPeakSPL()
{
int Sens = 0;
double Distance = 0;
int Watts = 0;
int sWatts = 2;
int eWatts = 0;
double maxSPL = 0;
double counter = 0;
double wall = 0;
std::string corner = "";
bool v = true;
std::cout << "Sensitivity (db): " << std::endl;
std::cin >> Sens;
std::cout << "Amplification (watts): " << std::endl;
std::cin >> Watts;
std::cout << "Listening Distance (meters): " << std::endl;
std::cin >> Distance;
std::cout << "Distance from Wall (ft): " << std::endl;
std::cin >> wall;
std::cout << "Are you they in a corner? (y/n): " << std::endl;
std::cin >> corner;
maxSPL = Sens - (Distance*3 - 3);
while(v == true)
{
if (sWatts > Watts)
{
v = false;
eWatts = sWatts;
sWatts = sWatts/2;
Watts = Watts-sWatts;
counter = (double)Watts/(double)eWatts;
counter = counter*3;
maxSPL = maxSPL + counter;
}
if (v == true)
{
maxSPL = maxSPL + 3;
sWatts = sWatts*2;
}
}
if (wall <= 4)
maxSPL = maxSPL + 3;
if (corner == "Y" || corner == "YES" || corner == "y" || corner == "yes")
maxSPL = maxSPL + 3;
return maxSPL;
}
我运行它时遇到的错误是：未定义对 `equations::maxPeakSPL()' 的引用
我不知道如何解决这个问题，任何帮助都会很棒。谢谢你。