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銆�銆�鑼冧緥涓�: : #define 顎�

銆�銆�鍒╃敤 #define 鏂瑰紡鎾板��杓稿叆鍦撳懆鍗婂緫瑷堢畻鍦撻潰绌嶎��

銆�銆�#define PI         3.1415929

銆�銆�#define Area(r)    PI * (r) * (r)

銆�銆�void main()

銆�銆�{

銆�銆�int r;

銆�銆�printf("Enter radius : ");

銆�銆�scanf(" %d", &r);

銆�銆�printf("The area = %10.4f \n", Area(r));

銆�銆�}

銆�銆�鑼冧緥浜� : #define 顎�

銆�銆�鍒╃敤 #define 鏂瑰紡鎾板��鍒ゆ柗杓稿叆鏁�(sh霉)鍊肩偤濂囨暩(sh霉)鎴栧伓鏁�(sh霉)顎�

銆�銆�#define odd(x) ((x) % 2 ==1) ? 1 : 0

銆�銆�void main()

銆�銆�{

銆�銆�int x;

銆�銆�printf("Enter one integer value : ");

銆�銆�scanf(" %d", &x);

銆�銆�if( odd(x))

銆�銆�printf("%d is odd number. \n", x);

銆�銆�else

銆�銆�printf("%d is even number. \n", x);

銆�銆�}