我正在浏览
using std::string;
uint8_t Helper::getCode(SOCKET sc)
{
uint8_t code;
getPartFromSocket(sc, reinterpret_cast<char*>(&code), sizeof(code), 0);
return code;
}
uint32_t Helper::getLength(SOCKET sc)
{
uint32_t length;
getPartFromSocket(sc, reinterpret_cast<char*>(&length), sizeof(length), 0);
return length;
}
std::string Helper::getString(SOCKET sc, size_t length)
{
std::string s(length + 1, 0);
getPartFromSocket(sc, (char*)s.data(), length, 0);
// possible since C++17 ^
return s;
}
void Helper::getPartFromSocket(SOCKET sc, char * buffer, size_t bytesNum, int flags)
{
if (bytesNum == 0)
{
return;
}
int res = recv(sc, buffer, bytesNum, flags);
if (res == INVALID_SOCKET)
{
std::string s = "Error while recieving from socket: ";
s += std::to_string(sc);
throw std::exception(s.c_str());
}
}
方法，并在其定义中看到了这一点。
这是什么意思？
$filename = 'file://'.$filename;
这是什么意思？