字符串输入问题2

#include
#define FORMAT "%d\n%s\n%f\n%f\n%f\n"

struct student
{
    int num;
    char *name;
    float score[3];
};

struct student stu;

void main()
{
    void print(struct student *);
    scanf("%d%s%f%f",&stu.num,stu.name,&stu.score[0],&stu.score[1]);
    scanf("%f",&stu.score[2]);
    print(&stu);
    getch();
}

void print(struct student *p)
{
    printf(FORMAT,p->num,p->name,p->score[0],p->score[1],p->score[2]);
    printf("\n");
}

12345 lili 89 89 90
12345

89.000
89.000
90.000

 

#include
#define FORMAT "%d\n%s\n%f\n%f\n%f\n"

struct student
{
    int num;

    char name[20];
    float score[3];
};

struct student stu;

void main()
{
    void print(struct student *);
    scanf("%d%s%f%f",&stu.num,stu.name,&stu.score[0],&stu.score[1]);
    scanf("%f",&stu.score[2]);
    print(&stu);
    getch();
}

void print(struct student *p)
{
    printf(FORMAT,p->num,p->name,p->score[0],p->score[1],p->score[2]);
    printf("\n");
}

12345 lili 89 89 90
12345
lili
89.000
89.000
90.000

 

原因：