std::map<std::string, std::string> 遍历

可以使用迭代器来遍历 std::map<std::string, std::string>，示例代码如下：

#include <iostream>
#include <map>
#include <string>

int main() {
    std::map<std::string, std::string> myMap;
    myMap["apple"] = "red";
    myMap["banana"] = "yellow";
    myMap["grape"] = "purple";

    // 使用迭代器遍历 map
    std::map<std::string, std::string>::iterator it;
    for (it = myMap.begin(); it != myMap.end(); it++) {
        std::cout << it->first << " is " << it->second << std::endl;
    }

    return 0;
}

输出结果：

apple is red
banana is yellow
grape is purple