main.cpp

来自「《C++ STL开发技术引导》配套光盘 聆听大师级的指点」· C++ 代码 · 共 15 行

#pragma warning(disable: 4786)
#include <map>
#include <iostream>

int main(void){
	using namespace std;
	multimap<int, char> mm;
	cout << mm.size() << endl;  //打印:0
	mm.insert(pair<int, char>(3, 'a'));
	mm.insert(pair<int, char>(3, 'c'));
	mm.insert(pair<int, char>(6, 'f'));
	cout << mm.count(3) << endl; //打印:2
	cout << mm.size() << endl;  //打印:3
	return 0;
}