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#include <iostream>#include <vector>#include <algorithm>using namespace std;

struct PowerCmp;struct ChargeCmp;//玩家基本信息class PlayrInfo{public: int getPower()const{ return u_power; }

 int getCharge()const{ return u_charge; }private: int u_ind; //玩家唯一id int u_power; //玩家战力 int u_charge; //玩家充值数量};

bool chargeCmp(PlayrInfo *a, PlayrInfo *b) { return a->getCharge() > b->getCharge();}

bool powerCmp(PlayrInfo *a, PlayrInfo *b) { return a->getPower() > b->getPower();}

int main(int argc, char* argv[]){ //分别实现排序 vector<PlayrInfo*> vecPlayer;

 sort(vecPlayer.begin(),vecPlayer.end(),powerCmp); sort(vecPlayer.begin(),vecPlayer.end(),chargeCmp); getchar(); return 0;}

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//玩家基本信息class PlayrInfo{public: PlayrInfo(int id, int power, int charge):u_ind(id),u_charge(charge),u_power(power){} int getPower()const{ return u_power; }

 int getCharge()const{ return u_charge; }private: int u_ind; //玩家唯一id int u_power; //玩家战力 int u_charge; //玩家充值数量

 //重载输出 friend std::ostream& operator<<(std::ostream& os,const boost::shared_ptr<PlayrInfo> & e) { //获取引用计数 //cout << e.use_count(); //获取原始指针 //e.get() os<<e->u_ind<<" "<<e->u_power<<" "<<e->u_charge<<std::endl; return os; }};

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struct powerOperator{ bool operator()(int a, int b) const { return a > b; }};

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struct by_id;struct by_power;struct by_charge;typedef multi_index_container< boost::shared_ptr<PlayrInfo>, //插入的主体，当然可以是PlayrInfo本身 indexed_by< //唯一主键，不可重复, std::greater<int> 为id规则从大到小，默认从小到大 //tag<by_id>为标签名，可写可不写 ordered_unique<tag<by_id> , const_mem_fun<PlayrInfo,int,&PlayrInfo::getId>>,

 //可重复的主键 ordered_non_unique<tag<by_power>, const_mem_fun<PlayrInfo, int, &PlayrInfo::getPower>, powerOperator >, ordered_non_unique<tag<by_charge>, const_mem_fun<PlayrInfo, int, &PlayrInfo::getCharge>, greater<int> > >> PlayerContainer;

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auto& ids = con.get<by_id>();copy(ids.begin(), ids.end(), ostream_iterator<boost::shared_ptr<PlayrInfo> >(cout));

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1 1231 100002 22222 20003 19999 222222

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auto& powers = con.get<by_power>();copy(powers.begin(), powers.end(), ostream_iterator<boost::shared_ptr<PlayrInfo> >(cout));

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2 22222 20003 19999 2222221 1231 10000

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auto &itfind = ids.find(2);

  if (itfind != ids.end()){ ids.erase(itfind); cout << "after erase: "<<endl; copy(con.begin(), con.end(), ostream_iterator<boost::shared_ptr<PlayrInfo> >(cout)); }

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after erase:1 1231 100003 19999 222222

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con.insert(boost::make_shared<PlayrInfo>(4, 1231, 10000));auto &beginit = powers.lower_bound(1231);auto & endit = powers.upper_bound(1231);for( ; beginit != powers.end()&& beginit != endit; ){ cout << "...................." <<endl; cout << *beginit; beginit = powers.erase(beginit);}

copy(powers.begin(), powers.end(), ostream_iterator<boost::shared_ptr<PlayrInfo> >(cout));

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....................1 1231 10000....................4 1231 100003 19999 222222

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auto piter = powers.find(19999);if(piter != powers.end() ){ auto newvalue = boost::make_shared<PlayrInfo>(100,200,300); powers.replace(piter, newvalue); copy(powers.begin(), powers.end(), ostream_iterator<boost::shared_ptr<PlayrInfo> >(cout));}

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piter = powers.find(200);  if(piter != powers.end()){       auto newp = 1024; powers.modify(piter, [&](boost::shared_ptr<PlayrInfo> & playptr)->void{ playptr->setPower(newp) ; }); copy(powers.begin(), powers.end(), ostream_iterator<boost::shared_ptr<PlayrInfo> >(cout)); }