OC Pre-processing program

&NBSP;&NBSP;FRACTION.H//&NBSP;&NBSP;OC12 Preprocessing program////&NBSP;&NBSP;CREATED&NBSP;BY&NBSP;ZOUJIE&NBSP;ON&NBSP;15/9 /17.//  copyright  (c) Replacement of general predefined constants for  2015 year  zoujie. all rights reserved.//// #define  kture 1#define kfalse 0#define pi 3.141592#define maximum_data_ values 1000//more advanced pre-defined #define two_pi 2.0 * 3.141592654#define and &&# define or | | #define  equals == #define &NBSP;TWO_PI_DEFINE&NBSP;2.0&NBSP;*&NBSP;PI//with parameter #define is_leap_year (y)  y%4 == 0 && y%100 !=0  | |  y%400==0  #define &NBSP;SQUARE (x)  x * x //arithmetic error  x representative expression:  x = y  + 1#define square_ture (x)   ((x) * (x)) #define  makefract, X, y   ([[fraction  Alloc]initwith: x over :y])  //? #define  max_two_number (A, B)    (((a) > (a))  ?  (a):(B))  //judge two parameters largeSmall #define ipad //declaration #import <foundation/foundation.h>//<> system Header File @interface  fraction : nsobject-(void) defineproduct;-(double)  area;-(double)  circumference;-(void) initwith:x over:y; @end

&NBSP;&NBSP;FRACTION.M//&NBSP;&NBSP;OC12 Preprocessing program////&NBSP;&NBSP;CREATED&NBSP;BY&NBSP;ZOUJIE&NBSP;ON&NBSP;15/9 /17.//  copyright  (c)  2015 year  zoujie. all rights reserved.//#import   "Fraction.h" @implementation  fraction{    int radius ;//radius}-(void) defineproduct{    int gameover = kfalse;    if  ( Gameover == kfalse)     {        gameover  = kTURE;        }         if  (gameover >0 and  (gameover <= 1)) {}    if   (gameover >0 or  (gameover <= 1)) {}    }-(double)  area{    radius = 10;    return PI *  Radius * radius;} -(DouBLE)  circumference{    return 2.0 * PI * radius;     return two_pi * radius;    return two_pi_define *  radius;} -(void) Initwith: (ID) X over: (id) y{    return ;} @end

&NBSP;&NBSP;MAIN.M//&NBSP;&NBSP;OC12 preprocessor////&NBSP;&NBSP;CREATED&NBSP;BY&NBSP;ZOUJIE&NBSP;ON&NBSP;15/9/17.   Copyright  (c)  2015 year  zoujie. all rights reserved.//#import   <Foundation/Foundation.h> #import   "Fraction.h" #import  <limits.h> #import  <float.h >int main (int argc, const char * argv[])  {    @ Autoreleasepool {              if    (Is_leap_year ())         {             nslog (@ "Judging leap Year");         }                nslog (@ "%d", Max_two_number (100, 99));     }    return 0;} #pragma  mark  conditional Compilation #ifdef ipad //ipad  declaration can #define kimagefile @ "bardhd.png" #else # define kimagefile @ " Barn.png "#endif//for commenting on #if 0#endif#undef  statements//making some names that have already been underground palace as undefined #undef ipad  //eliminate IPAD    #ifdef  IPAD  #if  defined (IPAD)   judgment is false

OC Pre-processing program