異或加解密

string _Encode(string prim)
{
	string result = "";

	string str = prim;
	size_t pos;

	vector<string> temp;
	for (int i = 0; i < str.length(); i++)
	{
		string singlechar = str.substr(i, i + 1);
		char ss = singlechar[0];
		ss = ss ^ KEY;//KEY在頭文件定義#define KEY 1313113 
		stringstream stream;
		stream << ss;
		string tt = stream.str();
		result += tt;
	}
	return result;
}