5.3.1.cpp

c入门代码大全

/*分段函数*/
#include<stdio.h>
int main()
{
    int x,y;
    scanf("%d",&x);
    if(x<0)
    y=-1;
    else
       if(x==0)
         y=0;
       else
         y=1;
         printf("x=%d,y=%d\n",x,y);
         getchar();
         getchar();
}