带有 ofstream 的 C++ 布尔值

Question

我已经编写 c++ 大约半年了。我试图用布尔值写入另一个文件。我不知道如何将我写入的内容输出到 txt 文件中。对不起我的英语不是我的母语。这是我的代码：

int main(){
system("cls");
std::cout << "1. Add ingredient" << std::endl;
std::cout << "2. Delete ingredient" << std::endl;
std::cout << "3. Show you ingrediens" << std::endl;
std::cout << "4. Show recipies" << std::endl;
std::cout << "5. Exit" << std::endl;

int choice;
std::cin >> choice;

switch (choice)
{
case 1:
    add();
    break;
case 2:
    deleteIngredient();
    break;
case 3:
    showIngredient();
    break;
case 4:
    showRecipies();
}
}

void add(){
system("cls");
const int maxIngredients = 10; // max ingredients
std::string ingredients[maxIngredients]{  /*kjøtt*/  "beef", "chicken", "pork", "lamb", "rabbit",
    /*fisk*/  "salmon", "tuna"}; // ingredients
bool hasingredient[maxIngredients] {}; //bool for ingredients
bool exit = false; // exit request
std::cout << "Welcome, type your ingredients " << std::endl;
while (!exit){
    std::string yourIngredients;
    std::cin >> yourIngredients;
    int i;
    for (i = 0; i < maxIngredients; i++)
        if (yourIngredients == ingredients[i]){
            yourIngredients[i] = true; // <================ set flag of indegrient
            if (yourIngredients[i] = true){
                std::cout << "You have choosen " << ingredients[i] << std::endl;
            }
            break;
        }
    std::string txtname = "YourIngredients.txt";
    std::ofstream ingredientsList(txtname);
    ingredientsList << "Your ingredients are: " << std::endl;
        int y = 0;
        for (y = 0; y < maxIngredients; y++){
            if (hasingredient[y] = true){
                ingredientsList << ingredients[y] << std::endl;
            }
        }

        ingredientsList.close();
    if (i == maxIngredients){
        if (yourIngredients == "Exit" || yourIngredients == "exit")
        {
            exit = true;
        }
    }
} 

}

Answer 1

如果我正确理解你的英语，你想打印你写的文件，不是吗？

添加这个：

std::cout << ingredients[y] << std::endl;

之后：

ingredientsList << ingredients[y] << std::endl;

我注意到你有 if 情况：

if (hasingredient[y] = true){

这不是比较，而是分配。