错误：切换数量不是整数。如何为多个单词创建字符代码

Question

所以我正在制作一个程序来制作一个像Zork一样的控制台运行文本视频游戏。而且我想把它打开，因为你可以输入“Walk Away”，它会理解。这是我的计划：

#include <iostream>
#include <stdio.h>
#include <cstdio>
#include <cstdlib>
#include <cstring>

wchar_t Choice;

using namespace std;

int main()
{
    int Choice;
    {
        printf("Welcome to Text Adventure Game!\n\n");
        printf("To play just read the text and enter in the numberic value (i.e. 1, 2, or 3)\nto make a decision. Your decesions will be reflected as you continue on in the game.\n\n\n");
        printf("Creators: Dillon Dugan and Justin Doubt.\n\n\n");
        printf("If there is a problem with your game, please contact us on twitter @DillonMDugan or through e-mail at dillonmdugan@yahoo.com.\n\n\n");
        printf("Enjoy.\n\n\n");
        system("PAUSE");
        printf(" \n\n\n\n\n");
        printf("You come out of darkness.\nConfused and tired, you walk to an abandoned house.\nYou walk to the door.\n");
        printf("What do you do?\n1. Walk Away.\n2. Jump.\n3. Open Door.\n\n");
        string Choice;
        cin>>Choice;
        cin.ignore();
        printf("\n\n\n");

        switch(Choice)
        {
            case 'Walk_Away':
            {
                //Walks Away
                printf("The House seems too important to ignore.\n");
                printf("What do you do?\n1. Jump.\n2. Open Door.\n\n");
                printf(" \n\n\n");
            }
        }
    }
}

我收到的错误是在第29行，“错误：切换数量不是整数

你可以帮我解决这个问题吗？如果我做错了什么（除了使用printf），请告诉我