/// <summary>
/// 获取某个请求头（单值）
/// </summary>
/// <param name="connId"></param>
/// <param name="key"></param>
/// <returns></returns>
public string GetHeader(IntPtr connId, string key)
{
IntPtr ptr = IntPtr.Zero;
if (HttpSdk.HP_HttpAgent_GetHeader(pAgent, connId, key, ref ptr))
{
return(Common.PtrToAnsiString(ptr));
}
return("");
}