c++ read text file and store it to vector

Question

我目前正在尝试读取这个格式为itemId的文本文件（item.txt）：itemDescription：itemCategory：itemSubCategory：amountPerUnit：itemQuantity：date我想要的是读取文本文件并根据我的预期输出将其存储在向量中。

Answer 1

You are on the right way, by using std::getline . But instead you should read the file line by line, and then put the full line in an std::istringstream , and then you can use std::getline to tokenize the line.

You can't use the normal input operator >> as that separates on space.

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Example

while (std::getline(readFile, line))
{
    std::istringstream iss(line);
    std::string temp;

    std::getline(iss, temp, ':');
    itemId = std::stoi(temp);

    std::getline(iss, itemDescription, ':');
    std::getline(iss, itemCategory, ':');
    std::getline(iss, itemSubCategory, ':');

    std::getline(iss, temp, ':');
    amountPerUnit = std::stod(temp);

    std::getline(iss, temp, ':');
    quantity = std::stoi(temp);

    std::getline(iss, date, ':');

    // Create object and add it to the vector
}