字符编码查看工具

来源：互联网发布：杨颖人品知乎编辑：程序博客网时间：2024/06/10 01:44
1：GBK，Unicode
http://www.mytju.com/classCode/tools/encode_gb2312.asp
2：UTF-8，Unicode
http://www.mytju.com/classCode/tools/encode_utf8.asp
3：代码
类定义  class CChineseCode      {         public:             static void UTF_8ToUnicode(wchar_t* pOut,char *pText);  // 把UTF-8转换成Unicode             static void UnicodeToUTF_8(char* pOut,wchar_t* pText);  //Unicode 转换成UTF-8             static void UnicodeToGB2312(char* pOut,wchar_t uData);  // 把Unicode 转换成 GB2312              static void Gb2312ToUnicode(wchar_t* pOut,char *gbBuffer);// GB2312 转换成　Unicode           static void GB2312ToUTF_8(string& pOut,char *pText, int pLen);//GB2312 转为 UTF-8             static void UTF_8ToGB2312(string &pOut, char *pText, int pLen);//UTF-8 转为 GB2312      };      类实现      void CChineseCode::UTF_8ToUnicode(wchar_t* pOut,char *pText)      {          char* uchar = (char *)pOut;          uchar[1] = ((pText[0] & 0x0F) << 4) + ((pText[1] >> 2) & 0x0F);          uchar[0] = ((pText[1] & 0x03) << 6) + (pText[2] & 0x3F);                 return;            }      void CChineseCode::UnicodeToUTF_8(char* pOut,wchar_t* pText)            {                // 注意 WCHAR高低字的顺序,低字节在前，高字节在后          char* pchar = (char *)pText;          pOut[0] = (0xE0 | ((pchar[1] & 0xF0) >> 4));          pOut[1] = (0x80 | ((pchar[1] & 0x0F) << 2)) + ((pchar[0] & 0xC0) >> 6);          pOut[2] = (0x80 | (pchar[0] & 0x3F));          return;            }      void CChineseCode::UnicodeToGB2312(char* pOut,wchar_t uData)            {          WideCharToMultiByte(CP_ACP,NULL,&uData,1,pOut,sizeof(wchar_t),NULL,NULL);          return;            }           void CChineseCode::Gb2312ToUnicode(wchar_t* pOut,char *gbBuffer)      {                ::MultiByteToWideChar(CP_ACP,MB_PRECOMPOSED,gbBuffer,2,pOut,1);          return ;            }      void CChineseCode::GB2312ToUTF_8(string& pOut,char *pText, int pLen)      {          char buf[4];          int nLength = pLen* 3;          char* rst = new char[nLength];          memset(buf,0,4);                memset(rst,0,nLength);          int i = 0;                int j = 0;                while(i < pLen)                {                  //如果是英文直接复制就可以                  if( *(pText + i) >= 0)                      {                               rst[j++] = pText[i++];                        }                  else                        {                             wchar_t pbuffer;                         Gb2312ToUnicode(&pbuffer,pText+i);                         UnicodeToUTF_8(buf,&pbuffer);                          unsigned short int tmp = 0;                          tmp = rst[j] = buf[0];                                tmp = rst[j+1] = buf[1];                                tmp = rst[j+2] = buf[2];                              j += 3;                                i += 2;                  }          }          rst[j] = '';          //返回结果          pOut = rst;                             delete []rst;             return;            }      void CChineseCode::UTF_8ToGB2312(string &pOut, char *pText, int pLen)            {          char * newBuf = new char[pLen];              char Ctemp[4];                memset(Ctemp,0,4);          int i =0;          int j = 0;          while(i < pLen)                {                    if(pText[i] > 0)                    {                  newBuf[j++] = pText[i++];                                           }                    else                                     {                      WCHAR Wtemp;                      UTF_8ToUnicode(&Wtemp,pText + i);                      UnicodeToGB2312(Ctemp,Wtemp);                      newBuf[j] = Ctemp[0];                      newBuf[j + 1] = Ctemp[1];                      i += 3;                                j += 2;                       }                }          newBuf[j] = '';          pOut = newBuf;          delete []newBuf;         return;             }
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