#include <sstream>
#include <random>
#include <string>
unsigned int random_char() {
std::random_device rd;
std::mt19937 gen(rd());
std::uniform_int_distribution<> dis(0, 255);
return dis(gen);
}
std::string generate_hex(const unsigned int len) {
std::stringstream ss;
for (auto i = 0; i < len; i++) {
const auto rc = random_char();
std::stringstream hexstream;
hexstream << std::hex << rc;
auto hex = hexstream.str();
ss << (hex.length() < 2 ? '0' + hex : hex);
}
return ss.str();
}
转自https://www.cnblogs.com/0523jy/p/11399578.html
标签:std,UUID,int,random,C++,生成,char,hexstream,include From: https://www.cnblogs.com/dbai/p/17564226.html