c++ - 如何在 while 语句中设置多个条件？ (c++)

Question

while 语句中可以有三个条件吗？

例如:

cout << "\n\nHow would you like your parcel shipped?\n (please type standard, express"
    " or same day)" << endl;
cin >> method;
while (method != ("standard" && "express" && "same day"))
{
    cout << "invalid input: please follow the instructions carefully.." << endl;
    cout << "\n\nHow would you like your parcel shipped?\n (please type 'standard',"
        " 'express' or 'same day')" << endl;
    cin >> method;
}

我问的原因是当我运行这段代码时，它进入了一个无限循环，我无法理解为什么。

Answer 1

while (method != "standard" && method != "express" && method != "same day")