unordered_map key无法取得时的的默认值 int main() { unordered_map<string, string> m1; ...
tr1::unordered_map<char, int>::iterator itlo = mymap.equal_range('a').first; tr1::unordered_map<char, int>::iterator itup = mymap.equal_range('a').second; cout << "unordered_map::itup " << (itup == mymap.end() ? "END" : "NOT END") << std::endl; cout << "unorde...