检查std::any变量是否包含std::string时出现问题

#include <iostream>
#include <any>
#include <string>

int main() {
    std::any variable = std::string("Hello World");

    // 检查std::any变量是否包含std::string类型
    if (variable.type() == typeid(std::string)) {
        // 使用std::any_cast将std::any转换为std::string类型
        std::string str = std::any_cast<std::string>(variable);
        std::cout << "The std::any variable contains a std::string: " << str << std::endl;
    } else {
        std::cout << "The std::any variable does not contain a std::string." << std::endl;
    }

    return 0;
}

The std::any variable contains a std::string: Hello World