utf8和gbk互转实现

注意：

我这里没有把整个类的代码贴出来,如果想让下面代码正常请添加

如下头文件.

#include<string>

#include<winnls.h>

头文件添加这两个函数声明

//转码相关函数static std::string GBKToUTF8(const char* strGBK);static std::string UTF8ToGBK(const char* strUTF8);

cpp文件添加转码函数实现

std::string CUrlHttp::GBKToUTF8(const char* strGBK)  {  int len = MultiByteToWideChar(CP_ACP, 0, strGBK, -1, NULL, 0);  wchar_t* wstr = new wchar_t[len+1];  memset(wstr, 0, len+1);  MultiByteToWideChar(CP_ACP, 0, strGBK, -1, wstr, len);  len = WideCharToMultiByte(CP_UTF8, 0, wstr, -1, NULL, 0, NULL, NULL);  char* str = new char[len+1];  memset(str, 0, len+1);  WideCharToMultiByte(CP_UTF8, 0, wstr, -1, str, len, NULL, NULL);  std::string strTemp = str;  if(wstr) delete[] wstr;  if(str) delete[] str;  return strTemp;  }  std::string CUrlHttp::UTF8ToGBK(const char* strUTF8)  {  int len = MultiByteToWideChar(CP_UTF8, 0, strUTF8, -1, NULL, 0);  wchar_t* wszGBK = new wchar_t[len+1];  memset(wszGBK, 0, len*2+2);  MultiByteToWideChar(CP_UTF8, 0, strUTF8, -1, wszGBK, len);  len = WideCharToMultiByte(CP_ACP, 0, wszGBK, -1, NULL, 0, NULL, NULL);  char* szGBK = new char[len+1];  memset(szGBK, 0, len+1);  WideCharToMultiByte(CP_ACP, 0, wszGBK, -1, szGBK, len, NULL, NULL);  std::string strTemp(szGBK);  if(wszGBK) delete[] wszGBK;  if(szGBK) delete[] szGBK;  return strTemp;  }