Question

可能重复：
undefined reference to `WinMain@16'

我正在构建一个应用程序，该应用程序根据用户确定的估计行驶速度计算从预定城市到达用户所选目的地所需的行程时间。对于这个程序，我将使用类/类源文件。在编译我的源文件时，我不断收到错误“对WinMain @ 16'的未定义引用”，由于我不熟悉源文件的使用，我不知道如何解决这个问题。关于正确指向正确使用源文件的方向，我们将不胜感激。在此先感谢您的帮助。

标题文件：

 #include <iostream>

    using namespace std;

    class Trip
    {
        private:
            string destination;
            double distance;

        public:
            void TripValue(string b, double c);
            void TripTime(Trip *a);
    };

源文件：

#include "Trip.h"
#include <iostream>

using namespace std;

void Trip::TripValue(string b, double c)
{
    destination = b;
    distance = c;
}

void Trip::TripTime(Trip *a)
{
    double user_speed;
    double time;

    cout << "Please enter your estimated travel speed in miles per hour: ";
    cin >> user_speed;
    cout << endl;

    time = (a->distance / user_speed);

    cout << endl;
    cout << "Your estimated travel time to " << a->destination << " is "
        << time << " hours.\n";
    cout << endl;
}

申请代码：

#include <iostream>
#include "Trip.h"

using namespace std;

int main()
{
    Trip StL, Indy, Det, Nash, Dal, Den, NY, LA, Mia, Sea;

    int choice;

    StL.TripValue("St. Louis", 297.34);
    Indy.TripValue("Indianapolis", 184.78);
    Det.TripValue("Detroit", 282.73);
    Nash.TripValue("Nashville", 441.02);
    Dal.TripValue("Dallas", 925.91);
    Den.TripValue("Denver", 1004.93);
    NY.TripValue("New York", 791.50);
    LA.TripValue("Los Angeles", 2017.74);
    Mia.TripValue("Miami", 1363.55);
    Sea.TripValue("Seattle", 2032.31);

    do
    {
        cout << "=================================Trip Calulator=================================\n";
        cout << "Select your destination from Chicago:\n";
        cout << endl;
        cout << " 1. St. Louis\n";
        cout << " 2. Indianapolis\n";
        cout << " 3. Detroit\n";
        cout << " 4. Nashville\n";
        cout << " 5. Dallas\n";
        cout << " 6. Denver\n";
        cout << " 7. New York\n";
        cout << " 8. Los Angeles\n";
        cout << " 9. Miami\n";
        cout << "10. Seattle\n";
        cout << endl;
        cout << " 0. Exit\n";
        cout << "================================================================================\n";

        cin >> choice;

        cout << endl;

        switch (choice)
        {
            case 1:
                StL.TripTime(&StL);
                break;
            case 2:
                Indy.TripTime(&Indy);
                break;
            case 3:
                Det.TripTime(&Det);
                break;
            case 4:
                Nash.TripTime(&Nash);
                break;
            case 5:
                Dal.TripTime(&Dal);
                break;
            case 6:
                Den.TripTime(&Den);
                break;
            case 7:
                NY.TripTime(&NY);
                break;
            case 8:
                LA.TripTime(&LA);
                break;
            case 9:
                Mia.TripTime(&Mia);
                break;
            case 10:
                Sea.TripTime(&Sea);
                break;
        }
    } while (choice != 0);
}

Answer 1

这是一个链接器问题。

尝试更改属性 - ＆gt;链接器 - ＆gt;系统 - ＆gt;子系统

从Windows（/ SUBSYSTEM：WINDOWS）到控制台（/ SUBSYSTEM：CONSOLE）

尝试使用类文件，获取“未定义的引用`WinMain @ 16'”错误

1 个答案: