VC++ 多字节宽字符相互转换
多字节宽字符相互转换用的较多，自己写了一点留作以后参考。
string str;
cout<<"please input chinese"<<endl;
cin>>str;
//setlocale(LC_CTYPE,".chs");
const char* cstr1 = str.c_str();
//int len = 2*sizeof(cstr);
int WLen = MultiByteToWideChar(CP_ACP, // code page
0, // character-type options
cstr1, // string to map
-1, // number of bytes in string
NULL, // wide-character buffer
0 // size of buffer
);
wchar_t * buffer = new wchar_t[WLen+1];
int RetWLen = MultiByteToWideChar(CP_ACP, // code page
0, // character-type options
cstr1, // string to map
-1, // number of bytes in string
buffer, // wide-character buffer
WLen // size of buffer
);
buffer[WLen] = '/0';
printf("/nthe translated num is %d",RetWLen);
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同理 宽字符到多字节
int MLen = WideCharToMultiByte(
CP_ACP, // code page
0, // performance and mapping flags
buffer, // wide-character string
-1, // number of chars in string
NULL, // buffer for new string
0, // size of buffer
NULL, // default for unmappable chars
NULL // set when default char used
); //这里第六个参数若为0 表示 返回 宽字符对应多字节的长度
char* MultiBte = new char[MLen+1];
int RetMLen = WideCharToMultiByte(
CP_ACP, // code page
0, // performance and mapping flags
buffer, // wide-character string
-1, // number of chars in string
MultiBte, // buffer for new string
MLen, // size of buffer
NULL, // default for unmappable chars
NULL // set when default char used
); //完成转换
printf("/nthe translated MultiByte num is :%d",RetMLen);
printf("/nthe Multibyte value:");
MultiBte[MLen]='/x0';
fputs(MultiBte,stdout); //可直接在终端输出
头文件 windows.h