nginx

  1 #include <stdio.h>
  2 #include <unistd.h>
  3 
  4 #include <sys/types.h>
  5 int main ()
  6 {
  7     typedef unsigned char u_char;
  8     u_char c,d;
  9 
 10     for(c='a',d='A'; c <='z' && d<='Z'; c=c+1,d=d+1){
 11         printf("%c-%c:", (u_char)(c|0x20),(u_char)(d|0x20));
 12     }
 13     printf("
");
 14 
 15 }

a-a:b-b:c-c:d-d:e-e:f-f:g-g:h-h:i-i:j-j:k-k:l-l:m-m:n-n:o-o:p-p:q-q:r-r:s-s:t-t:u-u:v-v:w-w:x-x:y-y:z-z: