语言c++,https://qyapi.weixin.qq.com/cgi-bin/media/upload?access_token=ACCESS_TOKEN&type=TYPE上传临时素材，报错44001 代码及问题截图如下，请问我需要怎么修改 [图片] #include "stdafx.h" #include "CHttpClient.h" #include <winInet.h> #include <afxinet.h> CHttpClient::CHttpClient() { } CHttpClient::~CHttpClient() { } int CHttpClient::ExecuteRequestUpload(LPCTSTR strFileName, LPCTSTR strUrl, string &strResponse) { CString strServer; CString strObject; DWORD dwServiceType; INTERNET_PORT nPort; strResponse = ""; CHttpConnection *m_pConnection = NULL; CInternetSession pSession; CHttpFile* m_pFile = NULL; AfxParseURL(strUrl, dwServiceType, strServer, strObject, nPort); if (AFX_INET_SERVICE_HTTP != dwServiceType && AFX_INET_SERVICE_HTTPS != dwServiceType) { return 1; } CFile fTrack; if (FALSE == fTrack.Open(strFileName, CFile::shareDenyNone | CFile::modeRead)) return -1; CString strRequestHeader = L""; CString strHTTPBoundary = L""; CString strPreFileData = L""; CString strPostFileData = L""; DWORD dwTotalRequestLength = 0; DWORD dwChunkLength = 0; DWORD dwReadLength = 0; DWORD dwResponseLength = 0; LPSTR szResponse = NULL; CString strFilePath = strFileName; int startp = strFilePath.ReverseFind('\\'); int namelen = strFilePath.GetLength() - startp - 1; CString szFileName = strFilePath.Mid(startp + 1, namelen); strHTTPBoundary = L"-------------------------acebdf13572468"; strPreFileData = MakePreFileData(strHTTPBoundary, szFileName, fTrack.GetLength()).c_str(); strPostFileData = MakeRequestEnders(strHTTPBoundary).c_str(); dwTotalRequestLength = strPreFileData.GetLength() + strPostFileData.GetLength() + fTrack.GetLength(); strRequestHeader = MakeRequestHeaders(strHTTPBoundary, strServer, nPort, dwTotalRequestLength).c_str(); dwChunkLength = 64 * 1024; void* pBuffer = malloc(dwChunkLength); if (NULL == pBuffer) { return -1; } else { try { m_pConnection = pSession.GetHttpConnection(strServer, nPort, NULL, NULL); m_pFile = m_pConnection->OpenRequest(L"POST",strObject,NULL, 1, NULL, NULL, INTERNET_FLAG_EXISTING_CONNECT); m_pFile->AddRequestHeaders(strRequestHeader); m_pFile->SendRequestEx(dwTotalRequestLength, HSR_SYNC | HSR_INITIATE); #ifdef _UNICODE   m_pFile->Write(strPreFileData, strPreFileData.GetLength()); #else   m_pFile->Write((LPSTR)(LPCSTR)strPreFileData, strPreFileData.GetLength()); #endif   dwReadLength = -1; while (0 != dwReadLength) { dwReadLength = fTrack.Read(pBuffer, dwChunkLength); if (0 != dwReadLength) { m_pFile->Write(pBuffer, dwReadLength); } } #ifdef _UNICODE   m_pFile->Write(strPostFileData, strPostFileData.GetLength()); #else   m_pFile->Write((LPSTR)(LPCSTR)strPostFileData, strPostFileData.GetLength()); #endif   m_pFile->EndRequest(HSR_SYNC); dwResponseLength = m_pFile->GetLength(); while (0 != dwResponseLength) { szResponse = (LPSTR)malloc(dwResponseLength + 1); szResponse[dwResponseLength] = '\0'; m_pFile->Read(szResponse, dwResponseLength); strResponse += szResponse; free(szResponse); dwResponseLength = m_pFile->GetLength(); } } catch (CInternetException* e) { //Clear(); DWORD dwErrorCode = e->m_dwError; e->Delete(); DWORD dwError = GetLastError(); if (ERROR_INTERNET_TIMEOUT == dwErrorCode) { return 3; } else { return 4; } } } return SUCCESS; } string CHttpClient::MakeRequestHeaders(LPCTSTR strBoundary, LPCTSTR strServerName, const int nPort,DWORD dwTotalRequestLength) { //CHAR strFormat[1024] = ""; //static CHAR strData[1024]; //const char* str = "Content-Type: multipart/form-data;boundary=-------------------------acebdf13572468\r\n"; //strcat(strFormat, "Accept-Language: zh-cn;\r\n"); //strcat(strFormat, str); //strcat(strFormat, "Connection: keep-alive\r\n"); ////strcat(strFormat, "Host:%s;\r\n"); //sprintf(strData, strFormat, strBoundary); string len =  to_string(long long(dwTotalRequestLength)); string strData = "Accept-Language: zh-cn\r\nContent-Type: multipart/form-data;boundary=-------------------------acebdf13572468\r\nConnection: keep-alive\r\nContent-Length:"; strData += len + "\r\n"; return strData; } string CHttpClient::MakePreFileData(LPCTSTR strBoundary, LPCTSTR strFileName, DWORD dsize) { //CHAR strFormat[1024] = ""; //static CHAR strData[1024]; ////const char* fileName = strFileName; //strcat(strFormat, "\r\n-------------------------acebdf13572468\r\n"); //strcat(strFormat, "Content-Disposition: form-data; name=\"media\"; filename=\"%s\";filelength=d%\r\n"); //strcat(strFormat, "Content-Type:image/bmp;image/jpeg;image/x-png;application/zip;application/octet-stream\r\n\r\n"); //  //      strcat(strFormat,"Content-Transfer-Encoding:binary\r\n\r\n"); //sprintf(strData, strFormat, strBoundary, strFileName, dsize); string str = CW2A(strFileName); string size = to_string(long long(dsize)); string strData = "-------------------------acebdf13572468\r\n"; strData +="Content-Disposition: form-data; name=\"media\"; filename=\""+ str +"\";filelength="+ size +"\r\n"; strData += "Content-Type:application/octet-stream\r\n"; return strData; } string CHttpClient::MakeRequestEnders(LPCTSTR strBoundary) { //CHAR strFormat[256] = ""; //static CHAR strEnd[256]; //strcat(strFormat, "\r\n%s--\r\n"); ////        strcat(strFormat,"Content-Disposition: form-data;name =\"submitted\"\r\n\r\n"); ////        strcat(strFormat,"submit\r\n"); ////        strcat(strFormat,"--%s--\r\n"); //sprintf(strEnd, strFormat, strBoundary); string strEnd = "-------------------------acebdf13572468--\r\n"; return strEnd; }