14-C語言宏

 #include <stdio.h>
 
 
  PI 3.14
  MianJi(r1) PI*r1*r1
  He(x,y) x+y
  Ji(x,y) ((x)*(y))
  SIZE 10
 
      
  He(x,y) x+y
  Ji(x,y) ((x)*(y))
  Swap(x) x-('a'-'A')
  Max(x,y) x>y?x:y
 
  main( argc,   *            pi =       r =      printf(     printf(,MianJi(r));
      i =       j =      printf(     printf(     printf(, / Ji(+, +));
 
 
      i = ,j =      printf(     printf(     printf(,Swap(     printf(       }

 #include <stdio.h>
  PI 3.14
  CHAR "hello"
  A -a
 
  MIANJI(r) PI*r*r
  F1(x,y) printf("max:%d\n",x>y?x:y);
 
  STR(x) #x 
  QUANJU(x) g_##x 
 
  QUANJU(i) = ;
  main( argc,   *       i =      
     printf(     printf(     printf(      
     printf(     printf(     printf(,CHAR);
     
      a =      printf(,-A);
  N 5
  N
  N 8
  M N+3
     printf(,M);
     
     F1(,        }

printf("是否是C 語言標准:%s\n",__STDC__?"是":"不是");

 #include <stdio.h>
  ZHAOBENSHAN 1
        i =      printf(     scanf(,& #ifndef ZHAOBENSHAN 
      (i ==          printf(     }         printf(  
      (i ==          printf(     }         printf(  
       }

 #include <stdio.h>
  DEVICE 2
    DEVICE == 0
     printf(  DEVICE == 1
     printf(  DEVICE == 2
     printf(  DEVICE == 3
     printf(  DEVICE == 4
     printf( 
     printf( 
       }