4/23 c++練習一

#include <stdio.h>
#include <stdlib.h>
int main(void)
{

       int ko(int);
       printf("函數回傳值是:%d\n",ko(6));


printf("============================\n\n");


    system("pause");
    return 0;
}

int ko(int x)
{
    printf("執行函數\n----------\n");
 return(x);
}