C Primer 编程练习

2.1

#include<stdio.h>
int main(void)
{
   printf("Co Khime ");
   printf("Co Khime ");
   printf("Co ");
   printf("Khime");
   return 0;
}

2.2

#include<stdio.h>
int main(void)
{
   printf("Co Khime ");
   printf("YiLaiAn");
   return 0;
}

2.3

#include<stdio.h>
int main(void)
{
   int y;
   y = 25;
   printf("Khiem is %d year old and she has live %d days", y, 365 * y);
}

2.4

#include<stdio.h>
void jolly(void);
void deny(void);
int main(void)
{
   jolly();
   jolly();
   jolly();
   deny();
}
void jolly(void)
{
   printf("For he's a jolly good fellow! ");
}
void deny(void)
{
   printf("Which nobody can deny!");
}

2.5

#include<stdio.h>
void br(void);
void ic(void);
int main(void)
{
   br();
   printf(",");
   ic();
   printf(" ");
   ic();
   printf(", ");
   br();

}
void br(void)
{
   printf("Brazil, Russia");
}
void ic(void)
{
   printf("India China");
}

2.6

#include<stdio.h>
int main(void)
{
   int toes;
   toes = 10;
   printf("toes is %d , Double toes is %d and Quare toes is %d", toes, 2 * toes, toes * toes);
   return 0;
}

2.7

#include<stdio.h>
void sme(void);

int main(void)
{
   sme();
   sme();
   sme();
   printf(" ");
   sme();
   sme();
   printf(" ");
   sme();
}
void sme(void)
{
   printf("Smile!");
}

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3.1

3.2

#include<stdio.h>

int main(void)
{
   int number;
   printf("plaease enter the number of char ");
   scanf("%d",&number);
   printf("the char of the number is %c",number);
   return 0;
}