int wlen = wcs len(pw)； wchar _ t a[200]；

Wsprintfw (length of a, l "'%s' is %d ",pw, wlen); MessageBoxW(NULL，a，L“hello msg”，0)； char * p = " XXXXXXXXXX

int len = strlen(p)； char b[ 100]；

WsprintfA(b, "%s is %d", p, len); MessageBoxA(NULL，b，“HelloMsg”，0)； It is strange that I can't compile the above two paragraphs together. Although there are mistakes, it would be nice if each paragraph were compiled and executed separately. Why?