在C++中访问环境变量

#include<iostream>
#include <cstdlib>

int main() {
    const char* path = std::getenv("PATH");
    if (path) {
        std::cout << "PATH: "<< path<< std::endl;
    } else {
        std::cout << "PATH not found"<< std::endl;
    }
    return 0;
}