题解 | #判断是不是字母#

#include <stdio.h>

int main()

{

char x;

while ((x=getchar()) != EOF)

{

getchar();

if (x >= 'a' && x <= 'z' || x >= 'A' && x <= 'Z')

printf("%c is an alphabet.\n", x);

else

printf("%c is not an alphabet.\n", x);

}

return 0;

}