C++ ANSI 與 utf-8轉換
阿新 • • 發佈:2019-01-09
[cpp] view plain copy print?
- //UTF8轉ANSI
- void UTF8toANSI(CString &strUTF8)
- {
- //獲取轉換為多位元組後需要的緩衝區大小,建立多位元組緩衝區
- UINT nLen = MultiByteToWideChar(CP_UTF8,NULL,strUTF8,-1,NULL,NULL);
- WCHAR *wszBuffer = newWCHAR[nLen+1];
- nLen = MultiByteToWideChar(CP_UTF8,NULL,strUTF8,-1,wszBuffer,nLen);
- wszBuffer[nLen] = 0;
- nLen = WideCharToMultiByte(936,NULL,wszBuffer,-1,NULL,NULL,NULL,NULL);
- CHAR *szBuffer = newCHAR[nLen+1];
- nLen = WideCharToMultiByte(936,NULL,wszBuffer,-1,szBuffer,nLen,NULL,NULL);
- szBuffer[nLen] = 0;
- strUTF8 = szBuffer;
- //清理記憶體
- delete []szBuffer;
- delete []wszBuffer;
- }
[cpp] view plain copy print?//UTF8轉ANSI void UTF8toANSI(CString &strUTF8) { //獲取轉換為多位元組後需要的緩衝區大小,建立多位元組緩衝區 UINT nLen = MultiByteToWideChar(CP_UTF8,NULL,strUTF8,-1,NULL,NULL); WCHAR *wszBuffer = new WCHAR[nLen+1]; nLen = MultiByteToWideChar(CP_UTF8,NULL,strUTF8,-1,wszBuffer,nLen); wszBuffer[nLen] = 0; nLen = WideCharToMultiByte(936,NULL,wszBuffer,-1,NULL,NULL,NULL,NULL); CHAR *szBuffer = new CHAR[nLen+1]; nLen = WideCharToMultiByte(936,NULL,wszBuffer,-1,szBuffer,nLen,NULL,NULL); szBuffer[nLen] = 0; strUTF8 = szBuffer; //清理記憶體 delete []szBuffer; delete []wszBuffer; }
- //ANSI轉UTF8
- void ANSItoUTF8(CString &strAnsi)
- {
- //獲取轉換為寬位元組後需要的緩衝區大小,建立寬位元組緩衝區,936為簡體中文GB2312內碼表
- UINT nLen = MultiByteToWideChar(936,NULL,strAnsi,-1,NULL,NULL);
- WCHAR *wszBuffer = newWCHAR[nLen+1];
- nLen = MultiByteToWideChar(936,NULL,strAnsi,-1,wszBuffer,nLen);
- wszBuffer[nLen] = 0;
- //獲取轉為UTF8多位元組後需要的緩衝區大小,建立多位元組緩衝區
- nLen = WideCharToMultiByte(CP_UTF8,NULL,wszBuffer,-1,NULL,NULL,NULL,NULL);
- CHAR *szBuffer = newCHAR[nLen+1];
- nLen = WideCharToMultiByte(CP_UTF8,NULL,wszBuffer,-1,szBuffer,nLen,NULL,NULL);
- szBuffer[nLen] = 0;
- strAnsi = szBuffer;
- //記憶體清理
- delete []wszBuffer;
- delete []szBuffer;
- }
//ANSI轉UTF8
void ANSItoUTF8(CString &strAnsi)
{
//獲取轉換為寬位元組後需要的緩衝區大小,建立寬位元組緩衝區,936為簡體中文GB2312內碼表
UINT nLen = MultiByteToWideChar(936,NULL,strAnsi,-1,NULL,NULL);
WCHAR *wszBuffer = new WCHAR[nLen+1];
nLen = MultiByteToWideChar(936,NULL,strAnsi,-1,wszBuffer,nLen);
wszBuffer[nLen] = 0;
//獲取轉為UTF8多位元組後需要的緩衝區大小,建立多位元組緩衝區
nLen = WideCharToMultiByte(CP_UTF8,NULL,wszBuffer,-1,NULL,NULL,NULL,NULL);
CHAR *szBuffer = new CHAR[nLen+1];
nLen = WideCharToMultiByte(CP_UTF8,NULL,wszBuffer,-1,szBuffer,nLen,NULL,NULL);
szBuffer[nLen] = 0;
strAnsi = szBuffer;
//記憶體清理
delete []wszBuffer;
delete []szBuffer;
}
自己改的c版本,測試可用:
static void UTF8toANSI(char *strUTF8,char*out_ansi)
{
//獲取轉換為多位元組後需要的緩衝區大小,建立多位元組緩衝區
UINT nLen = MultiByteToWideChar(CP_UTF8, 0, strUTF8, -1, NULL, 0);
WCHAR wszBuffer = (WCHAR)malloc((nLen+1)*sizeof(WCHAR));
nLen = MultiByteToWideChar(CP_UTF8, 0, strUTF8, -1, wszBuffer, nLen);
wszBuffer[nLen] = 0;
nLen = WideCharToMultiByte(936, 0, wszBuffer, -1, NULL, 0, NULL, NULL);
nLen = WideCharToMultiByte(936, 0, wszBuffer, -1, out_ansi, nLen, NULL, NULL);
out_ansi[nLen] = 0;
}