如何将有符号字符初始化为无符号值，如C++中的0xFF？

signed char signedCharValue = -1;  // 有符号字符变量，值为-1
unsigned char unsignedCharValue = static_cast<unsigned char>(signedCharValue);  // 将有符号字符转换为无符号字符

// 输出结果
std::cout << "有符号字符值：" << static_cast<int>(signedCharValue) << std::endl;
std::cout << "无符号字符值：" << static_cast<unsigned int>(unsignedCharValue) << std::endl;