C Primer Plus_第二章_C语言概述_复习题与编程练习

REVIEW

1.如何称呼C程序的基本模块？

ans

它们被称为函数

2.什么是语法错误？给出一个英语例子和一个C语言例子

me

C的语法错误是指把正确的C符号放在了错误的位置

likes coding He. 

int main(void)

()

ans

语法错误就是指违背了如何把语句或程序放置在一起的规则。

Me speaks English good.

printf "where are the parentheses?";

3.什么是语义错误？给出一个英语例子和一个C语言例子

ans

语义错误就是指含义上的错误（编译不出语法错误）。

My favorite singer is GuoDegang.

thrice_n = 3 + n;

4.评定下面的程序

#include <</font>studio.h>

int main(void)  

({

int s;

s: = 56;s= 56;

printf ("There are s%d weeks in a year.",s);

return 0;

)}

PRACTICE

1.利用printf函数输出姓名

#include

int main(void)

{

printf("Tom Smith ");

printf("Tom Smith ");

printf("Tom ");

printf("Smith ");

 

return 0;

}

 

2.输出您的姓名和地址

#include
int main(void)
{
 printf("Name: Tom Smith ");
 printf("Add: China AnHui MaAnShan ");
 return 0;
}

 

3.把年龄转换成天数并显示二者的值

#include
int main(void)
{
 int age;
 int day;

 age = 24;
 printf("tom is %d years old ",age);
 printf("tom has been on earth for %d days ",age*365);

 return 0;
}

 

4.

#include
void prnt1(void);
void prnt2(void);

int main(void)   //主函数定义用 int main(void)
{
 prnt1();
 prnt1();
 prnt1();
 prnt2();
 return 0;
}

void prnt1(void)  //子函数定义用 void func(void)
{
 printf("For Tom is a jolly good fellow! ");
}
void prnt2(void)
{
 printf("Which nobody can deny!!! ");
}

 

5.

#include
int main(void)
{
 int toes,t_sqr,t_sum;
 toes = 10;
 t_sqr = toes * toes;
 t_sum = toes + toes;
 printf("toes = %d toes and = %d toes square = %d ",toes,t_sum,t_sqr);
 
 return 0;
}

 

6.

#include
void prt_s(void);
void prt_n(void);

int main(void)
{
 prt_s();
 prt_s();
 prt_s();
 prt_n();
 prt_s();
 prt_s();
 prt_n();
 prt_s();
 prt_n();

 return 0;
}

void prt_s(void)
{
 printf("Smile!");
}

void prt_n(void)
{
 printf(" ");
}

 

7.

#include
void one_three(void);
void two(void);

int main(void)
{
 printf("starting now: ");
 one_three();
 printf("done! ");

 return 0;
}

void one_three()
{
 printf("one ");
 two();
 printf("three ");
}

void two()
{
 printf("two ");
}