C++笔记之enum class和emun的区别

code review!

代码,使用 enum class 的示例：

#include <iostream>

enum class Month { January, February, March, April, May, June, July, August, September, October, November, December };

int main() {
    Month currentMonth = Month::August;

    if (currentMonth == Month::August) {
        std::cout << "It's August!" << std::endl;
    }

    // Uncommenting the following line will result in a compilation error
    // if (currentMonth == December) {
    //     std::cout << "It's December!" << std::endl;
    // }

    return 0;
}

代码,使用普通的 enum 的示例：

#include <iostream>

enum Month { January, February, March, April, May, June, July, August, September, October, November, December };

int main() {
    Month currentMonth = August;

    if (currentMonth == August) {
        std::cout << "It's August!" << std::endl;
    }

    // The following line compiles successfully, but it's not type-safe
    if (currentMonth == December) {
        std::cout << "It's December!" << std::endl;
    }

    return 0;
}