clearing.c

来自「c21Examples.rar」· C语言 代码 · 共 41 行

/* Clearing stdin of extra characters. */

#include <stdio.h>

void clear_kb(void);

int main( void )
{
    int age;
    char name[20];

    /* Prompt for user's age. */

    puts("Enter your age:");
    scanf("%d", &age);

    /* Clear stdin of any extra characters. */

    clear_kb();

    /* Now prompt for user's name. */

    puts("Enter your first name:");
    scanf("%s", name);
    /* Display the data. */

    printf("Your age is %d.\n", age);
    printf("Your name is %s.\n", name);

    return 0;
}

void clear_kb(void)

/* Clears stdin of any waiting characters. */
{
    char junk[80];
    gets(junk);
}