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在C++中，可以使用以下方法来遍历unordered_map：
- 使用迭代器遍历：
std::unordered_map<int, std::string> myMap = {{1, "apple"}, {2, "banana"}, {3, "orange"}};
for(auto it = myMap.begin(); it != myMap.end(); ++it) {
std::cout << "Key: " << it>first << ", Value: " << it>second << std>- 使用范围-based for 循环遍历：
std::unordered_map<int, std::string> myMap = {{1, "apple"}, {2, "banana"}, {3, "orange"}};
for(const auto& pair : myMap) {
std::cout << "Key: " << pair class="hljs-string">", Value: " << pair>- 使用for_each遍历：
std::unordered_map<int, std::string> myMap = {{1, "apple"}, {2, "banana"}, {3, "orange"}};
std::for_each(myMap.begin(), myMap.end(), [](const std::pair<int, std::string>& pair) {
std::cout << "Key: " << pair class="hljs-string">", Value: " << pair>- 使用范围-based for 循环遍历键或值：
std::unordered_map<int, std::string> myMap = {{1, "apple"}, {2, "banana"}, {3, "orange"}};
for(const auto& pair : myMap) {
std::cout << "Key: " << pair class="hljs-keyword">for(const auto& pair : myMap) {
std::cout << "Value: " << pair>