#include <stdio.h>
#include <stdlib.h>
void num(int);
int number;
int main(void)
{
    printf("輸入數值:");
    scanf("%d",&number);
    if(number%2==0)
     printf("此數為偶數\n");
    else
     printf("此數為積數\n");
    num(number);
    system("pause");
    return 0; 
}
void num(int number)
{
     if(number>0)
      printf("此數為正數\n");
     else
      printf("此數為負數\n");
      }