用C语言编写简单程序

1、实验36：# include void cat(void)printf(我是猫n); printf(现在还没有名字n);main ( ) cat(); return 0; 实验37：#include void print(int n)int i;for (i = 0; i n; i+)putchar(*);putchar(n);main()print(1);print(2);print(3);print(4);print(5);return 0;实验38： # include # include double get_float (void) char s80; gets (s); retur

2、n atof(s); /*关键部分*/ main () double hight; /*身高*/ printf (身高(cm)?); hight = get_float (); printf(你的标准体重是%.1f(kg)n, (hight-100.0)*.9); return 0; a: 这是一个有返回的函数实验39#include main() int i; long int price3; /*数组*/ price0=19800; price1=9800; price2 = 4980; printf (商品号码.价格n); for(i = 0; i 3; i+)printf( %d %5

3、ldn,i,pricei); return 0;实验40： #include main()int i;long int price =19800,9800,4980; /*数组*/ /price0=19800; /price1=9800; /price2 = 4980; printf (商品号码.价格n); for(i = 0; i 3; i+)printf( %d %5ldn,i,pricei); return 0;实验41： # include # include struct Person /*结构*/ char name20; int age; /*最后要有;*/main () str

4、uct Person who; strcpy (, Ritchie); who.age = 20; printf (姓名=%sn, ); printf (年龄=%dn, who.age); return 0; a: 结构的内存分配上存在空穴实验42 # include main() int n3; printf (sizeof(n0) :%dn, sizeof(n0); /*注意*/ printf (sizeof(n) :%dn, sizeof(n); return 0; 实验： #include main() char s3; float f; printf

5、(&s0 :%un, &s0); printf (s :%un, s); /*非常值得注意*/ printf (&s1 :%un, &s1); printf (&s2 :%un, &s2); printf (&f :%un, &f); return 0; 实验44： # include main () int d = 100; int *pd; printf (&d :%un, &d); printf (&pd :%un, &pd); pd = &d; printf (pd :%un, pd); printf (pd :%dn, *pd); return 0; 实验45# include vo

6、id change (int x, int y) int temp; if (x y) temp = x; x = y; y = temp; main () int n1 = 100, n2 = 200; printf (n1, n2是最初值为：%d， %dn, n1, n2); change (n1, n2); /*结果n1, n2并没有对调*/ printf (change后的值为： %d， %dn, n1, n2); return 0; 实验： # include void change (int *x, int *y) int temp; if (*x *y) temp = *x; *

7、x = *y; *y = temp; main () int n1 = 100, n2 = 200; printf (n1, n2是最初值为：%d， %dn, n1, n2); change (&n1, &n2); printf (change后的值为： %d， %dn, n1, n2); return 0; 实验47： # include # include /*strlen*/ /*除去字符串最后一个字符*/void dec-str(char *s) int last = strlen(s)； if (last 0) slast 1 = 0; /*为什么是last 1?*/main ()

8、char name = “computer”; int i; for (i = 0; i 8; i+) printf (“ %sn”，name); dee-str(name); return 0； 实验48： 关于内部变量和外部变量# include int data=123;void put(int n) data = n;int get (void) return data;main ()/int data;/printf(Input the data please);/scanf(%d,&data); put(data);printf (%dn,get (); return 0; 实验4

9、9： 符号常数# include # define MAX 26 /*习惯用大写*/# define BELL a# define ENDL nmain () char cMAX; int i; for (i = 0; i MAX; i+) ci = A+i; for (i = 0; i MAX; i+) putchar(ci) ; putchar(BELL); putchar(ENDL); return 0; 实验50： 函数声明# include void cat (void); /*函数声明*/main ( ) cat ( ); return 0; void cat (void) pri

10、ntf (我是猫n); printf (还没有名字n);实验51： # include #include neko.hmain ( ) neko( ); return 0; /- /neko.h 文件文件2 /-void neko(void)printf (我是猫我是猫,n还没有名字还没有名字n); 1、char s = “ABCDE”;char * s = “ABCDE” “FGH”;实验52： # include main( ) /char s = “ABCD” EFGH; char * s = ABCD EFGH; printf (%sn, s); return 0; 实验53： 利用下

11、面的一个函数，设计一个程序void get_str(char *s, int size) char temp129; gets(temp); strcpy(s, temp); ssize = 0; #include #include void get_str(char *s, int size) char temp129; gets(temp); strcpy(s, temp); ssize = 0; main( ) char s129; get_str(s,12); printf (%sn, s); return 0; 实验54： # include char * ps = Pascal, C, Fortran,