我正在尝试从 CLI 获取日期。但是，我首先将它作为字符串获取，因为当我输入一些无效值时程序行为异常，例如，直接在 int 上使用 std::cin >> 时的字符串。到目前为止，这是我的代码，它的行为不符合预期。以 mm/dd/yyyy 格式输入日期后，仍然显示“我们无法解释您的输入”。下面是我的代码，任何帮助将不胜感激：
while (true)
{
bool success = true;
std::cout << "Enter the date added to inventory in the format mm/dd/yyyy: ";
std::string mm, dd, yyyy;
std::string temp;
std::getline(std::cin,temp);
for (int i=0; i<temp.size(); i++)
{
if ((temp[i]=='/') || (temp[i]='\\') || (temp[i] == '-'))
temp[i] = ' ';
}
std::stringstream datestream(temp);
datestream >> mm >> dd >> yyyy;
try {
date->month = static_cast<char>(std::stoi(mm.c_str()));
date->day = static_cast<char>(std::stoi(dd.c_str()));
date->year = static_cast<int>(std::stoi(yyyy.c_str()));
} catch (std::invalid_argument e)
{
std::cout << "We could not interpret your input. \n";
success = false;
} catch (std::out_of_range e)
{
std::cout << "Your input was too large. Please try a smaller number a smaller number for dd, mm, and yyyy. \n";
success = false;
}
if (success)
break;
}