Hex string convert to integer with stringstream
睿豐德科技 專注RFID識別技術和條碼識別技術與管理軟件的集成項目。質量追溯系統、MES系統、金蝶與條碼系統對接、用友與條碼系統對接
#include <sstream>
#include <iostream>
int main() {
unsigned int x;
std::stringstream ss;
ss << std::hex << "FF";
ss >> x;
// output it as a signed type
std::cout << static_cast<int>(x) << std::endl;
}