我找不到第一个用户输入后立即退出程序的原因

代码的cin>>initial部分仅接入用户输入，直到第一个空空间

因此，当您输入时，当您的初始字符串包含外观时，这就是为什么您的代码未输入IF语句的原因。

尝试getline（初始）而不是cin>>

查看此链接

我发现了这个程序的某个问题。

1. 如果您想要多个单词输入 - 使用getline（cin，str） - CIN只将第一个单词作为输入。

2. 一旦发出EOF（或任何其他错误），所有输入数据的尝试都会失败。在尝试进一步输入之前，您必须首先清除流（cin.clear（）;）。因此，对于每个CIN，使用Cin.Clear（）冲洗输入缓冲区。

现在在您的程序中，如果您不使用clear（），并且输入多个单词输入，那么第一个单词将输入第一个字符串，该输入的第二个单词将输入第二个" CIN>> A"，因此将输入它不止于此，因为它获得了输入。

尝试以下操作： -

//#include "stdafx.h"
#include <string>;
#include <iostream>;
#define newline 'n';
using namespace std;
string initial;
string a;
string b;
string c;
string object;
string sword;
string testswing;
int main()
{
    cout << "you awake in a forest with no memory what do you do?";
    cout << newline;
    getline(cin, initial);
    if (initial == "look left" || initial == "look forward" || initial == "look behind"){
        cout << newline;
        cout << "you see a dense forest";
        cout << newline;
    }
    else if(initial == "look right") {
        cout << newline;
        cout << "you see a opening with a shape in the distance";
        cout << newline;
    }
    cin.clear();
    getline(cin, a);
    cout << newline;
    if (a == "go right")
    {
        cout << newline;
        cout << "you see a trap lucily you dident set it off. might want to SEARCH AREA before going into open areas";
        cout << newline;
        cin >> c;
        cout << newline;
        if (c == "go forward")
        {
            cout << newline;
            cout << "you arrive at the strange object do you want to INSPECT OBJECT?";
            cout << newline;
            if (object == "inspect object")
            {
                cout << newline;
                cout << "You see the object is a sword stuck in a stone";
                cout << newline;
                cin >> sword;
                if (sword == "pull sword");
                {
                    cout << newline;
                    cout << "the sword breaks free of the stone you have obtained the SHORT SWORD";
                        cout << newline;
                    cout << "use this item when appropriate by using the command SWING SWORD";
                    if (testswing == "swing sword");
                    {
                        cout << newline;
                        cout << "you swing the sword it hits the rock and breaks";
                        cout << newline;
                        cout << "we told you only to use the sword when appropriate now look what you've done your adventure is over already";
                            cout << newline;
                            system("pause");
                            return 0;
                    }
                }
            }
            else
            {
                cout << newline;
                cout << "the object draws you twards it seemingly by magic";
                cout << newline;
            }
        }
        else (c == "go left" || c == "go right"|| c == "go back");
        {
            cout << "there is nothing but empty feilds for miles you get lost and die";
            cout << newline;
            system("pause");
                return 0;
        }
    }
    else {
        cout << "you cant go that way";
    }
    cout<<endl;
    system("PAUSE");
}