为什么下面这段程序，当输完“xuehao”这一项后就自动退出了，后面还有很多项要输入呢。
#include<stdio.h>
#include<conio.h>
#include<string.h>

struct xuesheng
{
    char xingming[100];
    int nianling;
    int xuehao;
    float chengji[3];
};

void shuru(struct xuesheng x[]);

int main(void)
{
    int i;
    struct xuesheng x[3];
    shuru(x);
    getch();
    return 0;
}

void shuru(struct xuesheng x[])
{
    int i;
    char *p;
    printf("qing shu ru xue sheng de xin xi:\n");
    for(i=0;i<3;++i)
    {
        printf("qing shu ru di %d ge xue shen xin xi:\n",i);
        scanf("%s %d %d",p,&x[i].nianling,&x[i].xuehao);
        printf("qing shu ru cheng ji:\n");
        printf("xing ming:");
        scanf("%s",p);
        strcpy(x[i].xingming,*p);
        printf("nian ling:");
        scanf("%d",&x[i].nianling);
        printf("xue hao:");
        scanf("%d",&x[i].xuehao);
        printf("cheng ji:\n");
        printf("yu wen:");
        scanf("%f",&x[i].chengji[0]);
        printf("shu xue:");
        scanf("%f",&x[i].chengji[1]);
        printf("ying yu:");
        scanf("%f",&x[i].chengji[2]);
    }
}

#include<stdio.h>
#include<string.h>
struct xuesheng
{
    char xingming[100];
    int nianling;
    int xuehao;
    float chengji[3];
};
void shuru(struct xuesheng x[]);
int main()
{
    int i;
    struct xuesheng x[3];
    shuru(x);
    return 0;
}
void shuru(struct xuesheng x[])
{
    int i;
    char *p;
    printf("qing shu ru xue sheng de xin xi:\n");
    for(i=0;i<3;i++)
    {
        printf("qing shu ru di %d ge xue shen xin xi:\n",i+1);
        scanf("%s%d%d",x[i].xingming,&x[i].nianling,&x[i].xuehao);
        printf("qing shu ru cheng ji:\n");
        printf("yu wen:");
        scanf("%f",&x[i].chengji[0]);
        printf("shu xue:");
        scanf("%f",&x[i].chengji[1]);
        printf("ying yu:");
        scanf("%f",&x[i].chengji[2]);
    }
}

先谢谢前辈了，不过这个问题还是存在