<分区>
从这里开始。 Xcode 告诉我“代码永远不会在 else 语句的第一行执行，我不知道该怎么办。
我试图做到这一点，如果用户的输入不是 switch 语句中的四个选项之一，它默认为第三个选项。请帮忙。
int lengthoption;
std::cout << "Please select an option for the length of your loan based on the following options: " << std::endl;
std::cout << "1. 3 years" <<std::endl;
std::cout << "2. 4 years" <<std::endl;
std::cout << "3. 5 years" <<std::endl;
std::cout << "4. 6 years" <<std::endl;
std::cin >> lengthoption;
double NumberofPayments;
if (lengthoption == 1 || 2 || 3 || 4)
{
switch (lengthoption)
{
case 1:
NumberofPayments = 36;
std::cout << "You chose a 3 year loan with a total of " << NumberofPayments << " monthly payments." << std::endl;
break;
case 2:
NumberofPayments = 48;
std::cout << "You chose a 4 year loan with a total of " << NumberofPayments << " monthly payments." << std::endl;
break;
case 3:
NumberofPayments = 60;
std::cout << "You chose a 5 year loan with a total of " << NumberofPayments << " monthly payments." << std::endl;
break;
case 4:
NumberofPayments = 72;
std::cout << "You chose a 6 year loan with a total of " << NumberofPayments << " monthly payments." << std::endl;
}
}
else
{
***NumberofPayments = 60;***
std::cout << "You chose a 5 year loan with a total of " << NumberofPayments << " monthly payments." << std::endl;
}