第二章编程练习

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第二章编程练习 1.打印姓名

#define NAME"Billie"
#define SURNAME"Eilish"
int main(void)
{
	printf("%s %s\n",NAME,SURNAME);
	printf("%s\n %s\n",NAME,SURNAME);
	printf("%s",NAME);
	printf("%s\n",SURNAME);
	return 0;
}

2.打印姓名地址

#define NAME"Halsey"
#define ADDRESS"Washington,New Jersey,USA"
int main(void)
{
	printf("%s\n",NAME);
	printf("%s\n",ADDRESS);
	return 0;
}```
3.年龄和天数
```#include <stdio.h>
int main(void)

{
    int age,day;
    age=17;
    day=17*365;
    printf("my age=%d days=%d",age,day);
    return 0;
}```
4.输出jolly deny
```#include <stdio.h>
int jolly(void);
int deny(void);
int main(void){
	jolly();
	jolly();
	jolly();
	deny();
	return 0;
}
int jolly(void){
	printf("For he's a jolly good fellow!\n");
	return 0;
}
int deny(void){
	
	printf("Which nobody can deny!\n");
	return 0;/*wj*/
}```
5.输出bric
```#include <stdio.h>
int br(void);
int ic(void);
int main(void){
	br();
	printf(",");
	ic();
	printf(",\n");
	br();
	printf("\n");
	return 0;
}
int br(void){
    printf("Brazil,Russia");
    return 0;
}
int ic(void)
{
	printf("India,China");
	return 0;//wj
}```
6.计算toes
```#include <stdio.h>
int main(void){
	int toes;
	toes=10;
	printf("The Variablem toes=%d.\n",toes);
	printf("donble toes=%d.\n",2*toes);
	printf("toes'square=%d.\n",toes*toes);
	return 0;
}```
7.smile
```int smile(void);
#include <stdio.h>
int main(void) {
	smile();smile();smile();
	printf("\n");
	smile;smile;
	printf("\n");
	smile;
	printf("n");
	return 0;
}
int smile(void){
	printf("smile!");
	return 0;
}```
8.one-three
```#include <stdio.h>
int one_three(void);
int two(void);
int main(void){
	printf("Starting now:\n");
	one_three();
	printf("Done!\n");
	return 0;
}
int one_three(void){
	printf("one\n");
	two();
	printf("three\n");
	return 0;
}
int two(void){
	printf("two\n");
	return 0;
}```