由于項目中需要將nsstring 轉化為 const wchar_t *的對象, 第一次在轉換的時候的采用的是
+(const wchar_t*)stingTowWchar_t:(NSString*)string
{ ? ?const char *cString=[string cStringUsingEncoding:NSUTF8StringEncoding];
//? ? cString = [ StringUsingEncoding:NSUTF8StringEncoding];
? ? setlocale(LC_CTYPE, "UTF-8");
? ? NSInteger iLength = mbstowcs(NULL, cString, 0);
? ? NSInteger bufferSize = (iLength+1)*sizeof(wchar_t);
? ? wchar_t *stTmp = (wchar_t*)malloc(bufferSize);
? ? memset(stTmp, 0, bufferSize);
? ? mbstowcs(stTmp, cString, iLength);
? ? stTmp[iLength] = 0;
?? ?printf("begin %ls\n",stTmp);
?? ?std::wstring wstr(stTmp);
? ? free(stTmp);
? ? return stTmp;
}
借助于const char , 然后在逐字轉換, 經(jīng)過驗證發(fā)現(xiàn), 這種處理, 英文, 可以, 中文不行,最終get到的方案
+(const wchar_t*)stingTowWchar_t:(NSString*)string
{
return (wchar_t*)[string cStringUsingEncoding:NSUTF32StringEncoding];
}
+(NSString*)getStringFromWChar:(const wchar_t*) inStr
{
?? ?setlocale(LC_CTYPE, "UTF-8");
NSInteger strLength = wcslen(inStr);
? ? NSInteger bufferSize = (strLength+1)*4;
? ? char *stTmp = (char*)malloc(bufferSize);
? ? memset(stTmp, 0, bufferSize);
? ? wcstombs(stTmp, inStr, strLength);
? ? NSString* ret = [[NSString alloc] initWithBytes:stTmp length:strlen(stTmp) encoding:NSUTF8StringEncoding];//ARC
? ? free(stTmp);
? ? return ret;
}
至此, 轉換和讀取完成, over , 感謝GSDN博主hhh901119!
