#include  <iostream>

using namespace std;

#include"set"

#include"algorithm"

struct compareNoCase

{

	//bool operator()(const string &str1, const string &str2)  这种居然是错误的。不知道为什么

	bool operator()(const string &str1, const string &str2) const

	{

		string str11;

		str11.resize( str1.size ());

		transform(str1.begin(), str1.end(), str11.begin(), tolower);

		string str22;

		str22.resize ( str2.size());

		transform(str2.begin(), str2.end(), str22.begin(), tolower);

		return (str11 > str22);

	}

};

void main01()

{

	set<string > s1;

	s1.insert("aaa");

	s1.insert("wew");

	s1.insert("qwe");

	set<string>::iterator it = s1.find("aaa");

	if (it == s1.end())

	{

		cout << "没有找到" << endl;

	}

	else

		cout << "找到" << endl;

	set<string, compareNoCase> s2;

	s2.insert("aAa");

	s2.insert("wSw");

	s2.insert("qAe");

	set<string, compareNoCase>::iterator it2 = s2.find("aAa");

	if (it2 == s2.end())

	{

		cout << "没有找到" << endl;

	}

	else

		cout << "找到" << endl;

}

int main()

{

	main01();

	system("pause");

}