getch() c++的替代方法

#include <iostream>

int main() {
    char ch;
    std::cout << "Enter a character: ";
    ch = std::cin.get();
    std::cout << "You entered: " << ch << std::endl;
    return 0;
}

#include <cstdio>

int main() {
    char ch;
    printf("Enter a character: ");
    ch = getchar();
    printf("You entered: %c\n", ch);
    return 0;
}

#include <iostream>

int main() {
    char ch;
    std::cout << "Enter a character: ";
    std::cin.ignore(256, '\n'); // 忽略输入流中的所有字符，直到遇到换行符
    ch = std::cin.get();
    std::cout << "You entered: " << ch << std::endl;
    return 0;
}