046.txt

经典C语言程序设计事例,是一本初学者的C语言程序设计书籍。

046
    题目：宏#define命令练习(1)

程序源代码：
#include "stdio.h"
#define TRUE 1
#define FALSE 0
#define SQ(x) (x)*(x)
void main()
{
int num;
int again=1;
printf("\40: Program will stop if input value less than 50.\n");
while(again)
{
printf("\40:Please input number==>");
scanf("%d",&num);
printf("\40:The square for this number is %d \n",SQ(num));
if(num>=50)
　again=TRUE;
else
　again=FALSE;
}
}