整数十进制转为16进制

主要应用头文件
#include <boost/cstdint.hpp>
#include <sstream>
方法1

	boost::uint16_t number = 255;
	std::stringstream convertor;
	convertor.setf(std::ios::hex,std::ios::basefield);
	convertor<<static_cast<int>(number);
	string str = convertor.str();
	cout<<str<<endl;

输出 ff

方法2
不应用boost整数类型

	int number = 255;
	std::stringstream convertor;
	convertor<<std::hex<<number;
	string str = convertor.str();
	cout<<str<<endl;

方法3
不应用boost整数类型

	int number = 255;
	std::stringstream convertor;
	convertor.setf(std::ios::hex,std::ios::basefield);
	convertor<<number;
	string str = convertor.str();
	cout<<str<<endl;