Question

我正在努力使它成为你可以说是或是的，如果你想要一个教程，但它总是运行'cout'为教程如何修复if语句，使其成为我可以输入是或否的地方它将取决于我所说的，请告诉我为什么我必须做我必须做的事情。

#include <iostream>
#include <istream>
#include <string>
using namespace std;

int main(){
string name;
cin >> name;
cout << name << " Will Now Be Your Business Name";
cout << " Would You Like A Tutorial? ";
string input;
cin >> input;
if (input != "Yes" || "yes"){
    cout << "You First Start With Naming Your Business Which Is What You Did And Then You \nCreate A Product By Entering In 'Create_Project' This Is How You Make Money ";
}
else if (input != "No" || "no"){
    int money = 1000;
    cout << "Money: " << money;
    }
}

Answer 1

if (input != "Yes" || "yes")

你想要

if (input != "Yes" || input != "yes")

否则，＆＃34;是＆＃34;不与输入进行比较，而是作为条件本身进行评估，并且由于C ++的工作原理是正确的（即非假）。
更详细的，在某种程度上不是0的任何东西都是真的。对于字符串＆＃34; yes＆＃34;，将获取内存地址，并且它不是0.

C ++ If Statement Letter Reader

1 个答案: