#include <stdio.h>
#include <wctype.h>
int main ()
{
int i;
wchar_t str[] = L"c3po...";
i=;
while (iswalnum(str[i])){
i++;
}
wprintf (L"The first %d characters are alphanumeric.\n",i);
return ;
}
输出
The first characters are alphanumeric.
#include <stdio.h>
#include <wctype.h>
int main ()
{
int i;
wchar_t str[] = L"c3po...";
i=;
while (iswalnum(str[i])){
i++;
}
wprintf (L"The first %d characters are alphanumeric.\n",i);
return ;
}
输出
The first characters are alphanumeric.
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