在 c++ 中使用 Enum，没有错误，但不会输入

你可以这样做：

 #include <iostream>
    using namespace std;
enum gameconsoles
{ 
    Xbox, 
    Playstation, 
    PSP, 
    Super_Nintendo,
    NES, 
    Sega, 
    Gamecube, 
    Nintendo64, 
    Wii, 
    Comodore64,
    Atari 
};
gameconsoles listed;
gameconsoles readgameconsoles(char char1, char char2)
{
    switch (char1)
    {
    case 'A':
    case 'a':
        listed = Atari;
        break;
    case 'C':
    case 'c':
        listed = Comodore64;
        break;
    case 'G':
    case 'g':
        listed = Gamecube;
        break;
    case'N':
    case'n':
        if (char2 == 'E' || char2 == 'e')
            listed = NES;
        else
            listed = Nintendo64;
        break;
    case 'P':
    case 'p':
        if (char2 == 'L' || char2 == 'l')
            listed = Playstation;
        else
            listed = PSP;
        break;
    case 'S':
    case 's':
        if (char2 == 'E' || char2 == 'e')
            listed = Sega;
        else
            listed = Super_Nintendo;
        break;
    case 'W':
    case 'w':
        listed = Wii;
        break;
    case 'X':
    case 'x':
        listed = Xbox;
        break;
    default:
        cout << "Illegal input. Try again" << endl;
    }
    return listed;
}
void printEnum(gameconsoles listed)
{
    switch (listed)
    {
    case Atari:
        cout << "The console you have specified is Atari";
        break;
    case Comodore64:
        cout << "The console you have specified is the Comodore 64";
        break;
    case Gamecube:
        cout << "The console you have specified is Gamecube";
        break;
    case NES:
        cout << "The console you have specified is the NES" << endl;
        cout << "or also known as the Nintendo Entertainment System";
        break;
    case Nintendo64:
        cout << "The console you have specified is Nintendo 64";
        break;
    case Playstation:
        cout << "The console you have specified is Playstation";
        break;
    case PSP:
        cout << "The console you have specified is PSP" << endl;
        cout << "or better known as the Playstation Portable";
        break;
    case Sega:
        cout << "The console you have specified is Sega";
        break;
    case Super_Nintendo:
        cout << "The console you have specified is Super Nintendo";
        break;
    case Wii:
        cout << "The console you have specified is Wii";
        break;
    case Xbox:
        cout << "The console you have specified is Xbox";
        system("PAUSE");
    }
}
void main()
{
    char char1, char2;
    cout << "This program will determine a game console based off of" << endl;
    cout << "the first two characters you input. The list is somewhat small, but" << endl;
    cout << "demonstrates the operation of enumeration programming." << endl << endl;
    cout << "Please input the first two characters of a game console: ";
    cin >> char1 >> char2;
    readgameconsoles(char1, char2);
    printEnum(listed);
    system("pause");
    return;
}

试过了，它对我有用。

只需将main放在代码的末尾，然后调用相关函数：

int main()
{
readgameconsoles();
return 0;
}

这不是关于枚举的问题，而是关于开发环境或主函数的问题。

你应该

1） 制作并运行此文件：

#include <iostream>
using namespace std;
int main(int argc, char** argv){
    cout << "Please input the first two characters of a game console: ";
    cin >> char1 >> char2;
    cout << "you typed " << char1 << " and " << char2 << endl;
}

2）如果您没有看到"请输入游戏机的前两个字符："行，则非常非常奇怪。通过描述您的环境来询问它。如果看到一个，请键入两个字符，按 Enter，然后转到步骤 （3）：

3）如果您看到"您键入..."行，没关系，你可以继续学习枚举-s。其他转到步骤 （4）

4） 如果没有，

• 询问有关配置开发环境的信息
• 或使用其中之一按任意键功能，如那些例子： http://www.cplusplus.com/forum/articles/7312/