使用开关将函数指针映射到字符串

#include <iostream>

typedef void (*FunctionPointer)();  // 定义函数指针类型

void func1() {
    std::cout << "This is function 1." << std::endl;
}

void func2() {
    std::cout << "This is function 2." << std::endl;
}

void func3() {
    std::cout << "This is function 3." << std::endl;
}

int main() {
    const int functionCount = 3;
    const char* functionNames[functionCount] = {"function1", "function2", "function3"};
    FunctionPointer functionPointers[functionCount] = {func1, func2, func3};

    std::string input;
    std::cout << "Enter function name: ";
    std::cin >> input;

    for (int i = 0; i < functionCount; i++) {
        if (input == functionNames[i]) {
            functionPointers[i]();  // 调用对应的函数
            break;
        }
    }

    return 0;
}