C Primer Plus(第6版)第三章答案
2017-07-06 19:54
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1.
2.
3.
4.#include <stdio.h>
int main (void)
{
float a;
printf ("Enter a floating-point value: ");
scanf ("%f", &a);
printf ("fixed-point notation: %f\nexpontial notation: %e\np notation: %a", a, a, a);
return 0;
}
5.#include <stdio.h>
int main (void)
{
float a;
printf ("Enter your age: ");
scanf ("%f", &a);
printf ("It's %e seconds", 3.156 * 1e7 * a);
return 0;
}
6.#include <stdio.h>
int main (void)
{
float a;
printf ("Enter water's quart: ");
scanf ("%f", &a);
printf ("%e", 950 * a / (3.0 * 1e-23));
return 0;
}
7.#include <stdio.h>
int main (void)
{
float a;
printf ("Enter your height in inch: ");
scanf ("%f", &a);
printf ("Your height in centimeter is %f", a * 2.54);
return 0;
}
8.#include <stdio.h>
int main (void)
{
float a;
printf("Enter the number of cups: ");
scanf("%f", &a);
printf("pint: %f\nounce: %f\nsoup spoon: %f\ntea spoon: %f", a / 2, a * 8, a * 16, a * 48);
return 0;
}
#include <stdio.h> int main (void) { int i; int num = 2; float num2 = 3.4E38; float num3 = num2 * 10; float num4 = 0.1234E-2; for (i = 0; i < 31; i++) { num *= 2; printf ("%d\n",num); } printf ("%e * 10 = %e\n", num2, num3); printf ("%f/10 = %f\n", num4, num4 / 10); return 0; }
2.
#include <stdio.h> int main (void) { int ch; printf ("please enter an ASCII:\n"); scanf ("%d", &ch); printf ("%c", ch); return 0; }
3.
#include <stdio.h> int main (void) { putchar ('\7'); printf ("Start by the sudden sound, Sally shouted,\n\"By the Great Pumpkin, what was that!\""); return 0; }
4.#include <stdio.h>
int main (void)
{
float a;
printf ("Enter a floating-point value: ");
scanf ("%f", &a);
printf ("fixed-point notation: %f\nexpontial notation: %e\np notation: %a", a, a, a);
return 0;
}
5.#include <stdio.h>
int main (void)
{
float a;
printf ("Enter your age: ");
scanf ("%f", &a);
printf ("It's %e seconds", 3.156 * 1e7 * a);
return 0;
}
6.#include <stdio.h>
int main (void)
{
float a;
printf ("Enter water's quart: ");
scanf ("%f", &a);
printf ("%e", 950 * a / (3.0 * 1e-23));
return 0;
}
7.#include <stdio.h>
int main (void)
{
float a;
printf ("Enter your height in inch: ");
scanf ("%f", &a);
printf ("Your height in centimeter is %f", a * 2.54);
return 0;
}
8.#include <stdio.h>
int main (void)
{
float a;
printf("Enter the number of cups: ");
scanf("%f", &a);
printf("pint: %f\nounce: %f\nsoup spoon: %f\ntea spoon: %f", a / 2, a * 8, a * 16, a * 48);
return 0;
}
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