/* Indicate if scanf format strings are equivalent, if not, show difference. */

#include <stdio.h>

int main(void)
{
    /* "%d-%d-%d" versus "%d -%d -%d" */

    char x2, y2;

    printf("Input first series number here:");
    scanf("%d-%d-%d", &x2);

    printf("Input second series number here:");

    scanf("%d -%d -%d", &y2);

    printf("%c\n%c\n", x2, y2);

    return 0;
}

运行程序，输入1-1-1

程序停止工作



问题：

是声明有问题？还是printf % 有问题？

//一种解决方案
#include <stdio.h>

int main(void)
{
    /* "%d-%d-%d" versus "%d -%d -%d" */

    char x2[20], y2[20];

    printf("Input first series number here:");
    scanf("%s",x2);

    printf("Input second series number here:");

    scanf("%s", y2);

    printf("%s\n%s\n", x2, y2);

    return 0;
}

谢斑竹

我稍改了下原来的程序，可以输出了

/* Indicate if scanf format strings are equivalent, if not, show difference. */

#include <stdio.h>

int main(void)
{
    /* "%d-%d-%d" versus "%d -%d -%d" */

    int x1, x2, x3, y1, y2, y3;

    printf("Input first series number here:");
    scanf("%d-%d-%d", &x1, &x2, &x3);
    printf("%d%d%d\n", x1, x2, x3);

    printf("Input second series number here:");

    scanf("%d -%d -%d", &y1, &y2, &y3);
    printf("%d%d%d\n", y1, y2, y3);

    return 0;
}

问题：
输入1-1-1
输出111
所以对比scanf"%d-%d-%d"和scanf"%d -%d -%d"，输出是一样的，因为scanf会忽略空格符，不知道这样的理解对不对头？

看下教材吧！字符串输入输出那章有答案，别猜了

谢了，看了教材，想上帖子来证实下...

舍本逐末