1、map
代码如下:
/*
* map_1.cpp
*
* Created on: 2013年8月6日
* Author: Administrator
*/ #include <iostream>
#include <map> using namespace std; template <typename T>
void print(T b , T e,char c = ' '){
while(b!= e){
cout<< *b++<<c;
}
cout<<endl;
} template<typename K , typename V>
ostream& operator<<(ostream& o , const pair<K,V>& p){
return o << p.first << ':' << p.second;
} int main(){
map<int,string> mis;
mis.insert(map<int,string>::value_type(5,"刘诗诗"));
mis.insert(pair<int,string>(8,"刘亦菲"));
mis.insert(make_pair(4,"章泽天"));
mis[3] = "allen";
mis[6] = "黄东东";
mis.insert(make_pair(5,"刘诗诗"));
mis.insert(make_pair(5,"zzt"));
print(mis.begin(),mis.end());
}
结果如下:
3:allen 4:章泽天 5:刘诗诗 6:黄东东 8:刘亦菲
2、multimap
代码如下:
/*
* multimap_1.cpp
*
* Created on: 2013年8月6日
* Author: Administrator
*/ #include <iostream>
#include <map>
#include <string> using namespace std; template<typename T>
void print(T b, T e, char c = ' ') {
while (b != e) {
cout << *b++ << c;
}
cout << endl;
} template <typename K ,typename V>
ostream& operator<<(ostream& o , const pair<K,V> p){
return o<<p.first <<' : '<<p.second;
} int main() {
typedef multimap<string, double> MSD;
MSD m;
m.insert(MSD::value_type("章泽天", 40000.0));
m.insert(MSD::value_type("章泽天", 41000.0));
m.insert(MSD::value_type("章泽天", 42000.0));
m.insert(MSD::value_type("章泽天", 43000.0)); m.insert(make_pair("刘诗诗", 30000.0));
m.insert(make_pair("刘诗诗", 35000.0));
m.insert(make_pair("刘诗诗", 39000.0)); m.insert(make_pair("刘亦菲", 50000.0));
m.insert(make_pair("刘亦菲", 55000.0));
m.insert(make_pair("刘亦菲", 40000.0)); print(m.begin(),m.end()); MSD::iterator ib = m.begin(),ie;
MSD cnt;
while(ib != m.end()){
string name = ib->first;
ie = m.upper_bound(name);
double sum = 0.0;
while(ib != ie ){
sum += ib++->second;
cnt.insert(make_pair(name,sum*0.03));
}
} print(cnt.begin(),cnt.end()); }
3、set
测试数据为:
1@qq.com
1@qq.com
1@qq.com
1@qq.com
1@qq.com
2@qq.com
2@qq.com
2@qq.com
3@qq.com
3@qq.com
结果为:
1@qq.com
2@qq.com
3@qq.com
4、mutilset
代码如下:
/*
* mutilset_1.cpp
*
* Created on: 2013年8月6日
* Author: Administrator
*/ #include <iostream>
#include <set>
#include <fstream> using namespace std; template<typename T>
void print(T b , T e, char c = ' '){
while(b!=e){
cout<< *b++<<c;
}
cout<<endl;
} int main(){
multiset<string> ss;
string s; ifstream fin("test"); if(!fin){
return 1;
} while(fin >> s){
ss.insert(s);
} print(ss.begin(),ss.end(),'\n'); }
结果如下:
1@qq.com
1@qq.com
1@qq.com
1@qq.com
1@qq.com
2@qq.com
2@qq.com
2@qq.com
3@qq.com
3@qq.com