map

1. map 插入元素 

map<long long,string> list;

  pair< map<long long,string>::iterator, bool>  ret = list.insert(map<long long,string>::value_type(1,"haah") );
  if (ret.second)
    cout << "insert succeed"  <<endl;

  list.insert(pair<long long,string>(2,"xixi") );

2. 查找删除

  map<long long,string>::iterator iter = list.find(2);
  if (iter == list.end())
    cout << "can't found";
  else
    cout << "key:"<<iter->first<<"    value:"<<iter->second<<endl;
  list.erase(iter);  //或者 list.erase(2);  直接删2