C++ GB2312 和 utf8 在win32下 互转
1 string ANSItoUTF8(const char* strAnsi) 2 { 3 //获取转换为宽字节后需要的缓冲区大小，创建宽字节缓冲区，936为简体中文GB2312代码页 4 int nLen = MultiByteToWideChar(CP_ACP, NULL, strAnsi, -1, NULL, NULL); 5 WCHAR *wszBuffer = new WCHAR[nLen + 1]; 6 nLen = MultiByteToWideChar(CP_ACP, NULL, strAnsi, -1, wszBuffer, nLen); 7 wszBuffer[nLen] = 0; 8 //获取转为UTF8多字节后需要的缓冲区大小，创建多字节缓冲区 9 nLen = WideCharToMultiByte(CP_UTF8, NULL, wszBuffer, -1, NULL, NULL, NULL, NULL); 10 CHAR *szBuffer = new CHAR[nLen + 1]; 11 nLen = WideCharToMultiByte(CP_UTF8, NULL, wszBuffer, -1, szBuffer, nLen, NULL, NULL); 12 szBuffer[nLen] = 0; 13 14 string s1 = szBuffer; 15 //内存清理 16 delete[]wszBuffer; 17 delete[]szBuffer; 18 return s1; 19 } 20 21 string UTF8toANSI(const char* strUTF8) 22 { 23 //获取转换为多字节后需要的缓冲区大小，创建多字节缓冲区 24 int nLen = MultiByteToWideChar(CP_UTF8, NULL, strUTF8, -1, NULL, NULL); 25 WCHAR *wszBuffer = new WCHAR[nLen + 1]; 26 nLen = MultiByteToWideChar(CP_UTF8, NULL, strUTF8, -1, wszBuffer, nLen); 27 wszBuffer[nLen] = 0; 28 29 nLen = WideCharToMultiByte(936, NULL, wszBuffer, -1, NULL, NULL, NULL, NULL); 30 CHAR *szBuffer = new CHAR[nLen + 1]; 31 nLen = WideCharToMultiByte(936, NULL, wszBuffer, -1, szBuffer, nLen, NULL, NULL); 32 szBuffer[nLen] = 0; 33 34 string s1 = szBuffer; 35 //清理内存 36 delete[]szBuffer; 37 delete[]wszBuffer; 38 return s1; 39 }
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