VC++ UTF-8与GBK格式转换
// 注释:多字节包括GBK和UTF-8 int GBK2UTF8(char *szGbk,char *szUtf8,int Len) { // 先将多字节GBK(CP_ACP或ANSI)转换成宽字符UTF-16 // 得到转换后,所需要的内存字符数 int n = MultiByteToWideChar(CP_ACP,0,szGbk,-1,NULL,0); // 字符数乘以 sizeof(WCHAR) 得到字节数 WCHAR *str1 = new WCHAR[sizeof(WCHAR) * n]; // 转换 MultiByteToWideChar(CP_ACP, // MultiByte的代码页Code Page 0, //附加标志,与音标有关 szGbk, // 输入的GBK字符串 -1, // 输入字符串长度,-1表示由函数内部计算 str1, // 输出 n // 输出所需分配的内存 ); // 再将宽字符(UTF-16)转换多字节(UTF-8) n = WideCharToMultiByte(CP_UTF8, 0, str1, -1, NULL, 0, NULL, NULL); if (n > Len) { delete[]str1; return -1; } WideCharToMultiByte(CP_UTF8, 0, str1, -1, szUtf8, n, NULL, NULL); delete[]str1; str1 = NULL; return 0; }
//UTF-8 GBK int UTF82GBK(char *szUtf8,char *szGbk,int Len) { int n = MultiByteToWideChar(CP_UTF8, 0, szUtf8, -1, NULL, 0); WCHAR * wszGBK = new WCHAR[sizeof(WCHAR) * n]; memset(wszGBK, 0, sizeof(WCHAR) * n); MultiByteToWideChar(CP_UTF8, 0,szUtf8,-1, wszGBK, n); n = WideCharToMultiByte(CP_ACP, 0, wszGBK, -1, NULL, 0, NULL, NULL); if (n > Len) { delete[]wszGBK; return -1; } WideCharToMultiByte(CP_ACP,0, wszGBK, -1, szGbk, n, NULL, NULL); delete[]wszGBK; wszGBK = NULL; return 0; }