例2.cpp

c语言书籍&课件&示例代码

#include <stdio.h>
void main( )
{  int x,y;
   printf("enter x:");
   scanf("%d",&x);
   if(x<0) y=-1;
   else if(x>0) y=1;
   else y=0;
   printf("x=%d, y=%d\n",x,y);
}