c语言宽字符处理

c语言宽字符处理

#define __STDC_WANT_LIB_EXT1__ 1
#include <stdio.h>
#include <wchar.h>
#include <wctype.h>

int main(void)
{
	wchar_t ch = 0; // Stores a character

	fwprintf_s(stdout,L"Enter a character:");
	fwscanf_s(stdin,L" %lc",&ch,sizeof(ch)); // Read a non-whitespace character

	if (iswalnum(ch))                       // Is is a letter or a digit?
	{
		if (iswdigit(ch))                  // Is is a digit?
		{
			fwprintf_s(stdout,L"You entered the digit %lc\n",ch);
		}
		else if (iswlower(ch))           // Is a lowercase letter?
		{ 
			fwprintf_s(stdout, L"You entered the lowercase %lc\n", ch);
		}
		else  
		{
			fwprintf_s(stdout, L"You entered the uppercase %lc\n", ch);
		}
	}
	else if (iswpunct(ch)) {            // Is is punctuation ?
		fwprintf_s(stdout, L"You entered the punctuation character %lc\n", ch);
	}
	else

		fwprintf_s(stdout, L"You entered   %lc,but I don't know what it is!\n", ch);

	return 0;
}