STL-去除list中重复的元素

// Test7.cpp : Defines the entry point for the console application.

#include "stdafx.h"
#include <list>
#include <string>
#include <algorithm>
int _tmain(int argc, _TCHAR* argv[])
{
	std::list<std::string> singleValueList;
	singleValueList.push_back("acid");
	singleValueList.push_back("acre");
	singleValueList.push_back("also");
	singleValueList.push_back("ache");
	singleValueList.push_back("ache");
	singleValueList.push_back("radio");
	singleValueList.push_back("able");
	singleValueList.push_back("ache");
	singleValueList.push_back("ache");
	singleValueList.push_back("acid");
	singleValueList.push_back("acre");
	singleValueList.push_back("auto");
	singleValueList.push_back("away");
	singleValueList.push_back("also");
	singleValueList.push_back("ache");
	singleValueList.push_back("ache");
	singleValueList.push_back("acid");
	singleValueList.push_back("acre");
	singleValueList.push_back("also");
	singleValueList.sort();  //sort the list
	singleValueList.erase( unique( singleValueList.begin(), singleValueList.end() ), singleValueList.end());//Remove duplicate list values
	return 0;
}

debug下处理后的list的值：
singleValueList[8]("able","ache","acid","acre","also","auto","away","radio")