//i要转化的十进制整数,width转化后的宽度,位数不足则补0
std::string dec2hex(int i, int width)
{
std::stringstream ioss; //定义字符串流
std::string s_temp; //存放转化后字符
ioss << std::hex << i; //以十六制形式输出
ioss >> s_temp;
if(width > s_temp.size())
{
std::string s_0(width - s_temp.size(), '0'); //位数不够则补0
s_temp = s_0 + s_temp; //合并
}
std::string s = s_temp.substr(s_temp.length() - width, s_temp.length()); //取右width位
return s;
}
float fTemp = 110.5596;
int iTemp = int(fTemp);
std::string strTemp = dec2hex(iTemp, 4);