如何在模板化的类中声明模板化的map :: iterator.下面的代码说; 编译时预计

#include<iostream>
#include <map>

template<typename T>
class MyClass {
public:
    MyClass() {}

    // 声明模板化的map
    std::map<int, T> myMap;

    // 声明模板化的map的iterator
    typename std::map<int, T>::iterator myIterator;

    void addElement(int key, T value) {
        myMap[key] = value;
    }

    T getElement(int key) {
        myIterator = myMap.find(key);
        if (myIterator != myMap.end()) {
            return myIterator->second;
        }
        return T();
    }
};

int main() {
    MyClass<std::string> myObj;
    myObj.addElement(1, "Hello");
    myObj.addElement(2, "World");

    std::cout << myObj.getElement(1)<< std::endl;
    std::cout << myObj.getElement(2)<< std::endl;

    return 0;
}