树人大学数字媒体吴凡

树人大学数字媒体吴凡

2.1 first.c

#include <stdio.h>
int main(void)                /* 一个简单的C程序       */
{
    int num;                  /* 定义一个名为num的变量 */
    num = 1;                  /* 为num赋一个值        */
    printf("I am a simple "); /* 使用printf函数()   */
    printf("computer.\n");
    printf("My favorite number is %d because it is first.\n",num);

    return 0;
}

2.2 fathm_ft.c

// fathm_ft.c -- 把2英寻转换成英尺

#include <stdio.h>
int main(void)
{
    int feet, fathoms;

    fathoms = 2;
    feet = 6 * fathoms;
    printf("There are %d feet in %d fathoms!\n", feet, fathoms);
    printf("Yes, I said %d feet!\n", 6 * fathoms);

    return 0;
}

2.3 two_func.c

/* two_func.c -- 一个文件中包含两个函数 */
#include <stdio.h>
void butler(void);      /* ANSI/ISO C 函数原型 */
int main(void)
{
    printf("I will summon the butler function.\n");
    butler();
    printf("Yes. Bring me some tea and writeable DVDs.\n");

    return 0;
}

void butler(void)       /* 函数定义开始 */
{
    printf("You rang, sir?\n");
}

10-06 12:41