C Primer Plus 第6版 编程练习 2.12 答案

1# 2#

#include

int main(void)

{

printf("胡八一\n");

printf("胡\n八一\n");

printf("姓名：胡八一\n");

printf("地址：山东省青岛市\n");

system("pause");

return 0;

}

3#

#include

int main(void)

{

int a = 25;//a代表年龄

int b = 365;//b代表一年天数

printf("%d\n", a*b);

system("pause");

return 0;

}

4#

#include

void jolly(void)

{

printf("For he's a jolly good fellow!\n");

}

void deny(void)

{

printf("Which nobody can deny!\n");

}

int main(void)

{

jolly();

jolly();

jolly();

deny();

system("pause");

return 0;

}

5#

#include

void br(void)

{

printf("Brazil,Russia");

}

void ic(void)

{

printf("India,China\n");

}

int main(void)

{

br(),   ic();

ic();

br();

system("pause");

return 0;

}

6#

#include

int main(void)

{

int toes;

int a, b;

toes = 10;

a = toes * 2;

b = toes * toes;

printf("%d(toes)\n%d(toes的两倍)\n%d(toes的平方)\n",toes,a,b);

system("pause");

return 0;

}

7#

#include

void a(void)

{

printf("Smile!");

}

int main(void)

{

a(); a(); a();

printf("\n");

a(); a();

printf("\n");

a();

    system("pause");

return 0;

}

8#

#include

int one_three(void);

int two(void);

int one_three(void)

{

printf("one\n");

}

int two(void)

{

printf("two\nthree\n");

}

int main(void)

{

printf("starting now :\n");

one_three();

two();

printf("down!\n");

system("pause");

return 0;

}