《c primer plus》编程练习回顾-第三章

3.11 编程练习
1.略
2.

#include<stdio.h>
int main(void)
{
    int a;
    printf("Please input an ASCII code:");
    scanf("%d",&a);
    printf("%c\n",a);
    return 0;
}

3.

#include<stdio.h>
int main(void)
{
   printf("\aStartled by the sudden sound ,Sally shouted,\"By the Great Pumpkin,what was that!\"\n");
   return 0;
}

4.

#include<stdio.h>
int main(void)
{
   float a;
   scanf("%f",&a);
   printf("The input is %f or %e",a,a);
   return 0;
}

5.

#include<stdio.h>
int main(void)
{
   float s;
   int year;
   printf("Please input your age:");
   scanf("%d",&year);
   s=year*3.156e7;
   printf("%f",s);
   return 0;
}

6.略