#include <stdio.h> #include <wctype.h> int main () { int i=0; wchar_t str[] = L"C++"; while (str[i]) { if (iswalpha(str[i])) wprintf (L"character %lc is alphabetic\n",str[i]); else wprintf (L"character %lc is not alphabetic\n",str[i]); i++; } return 0; }
输出
character C is alphabetic character + is not alphabetic character + is not alphabetic
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