C++ map详解

 map m1; m1["def"] = 2;

 map m2; m2.insert({ "abc", 1 });    //使用这种就可以了 //其他形式和方式 m2.insert(make_pair(string("def"), 2)); m2.insert(pair(string("ghi"), 3)); map mapStudent; mapStudent.insert(map::value_type (1,"student_one"));

 map m3 = { {"string",1}, {"sec",2}, {"trd",3} }; map m4 = { {"first","second"}, {"third","fourth"}, {"fifth","sixth"}, {"begin","end"} };

 map a;    //a是string到int的空map a["new"];             //"new"是新增的key