Question

unexpected 'struct' 'student'求解错在哪里？

#include<stdio.h>
main()
{
void print(struct student stu[5]);
struct score
struct student
{
int num;
char name[20];
float score[3];
}stu[5];
int i;
for(i=0;i<5;i++)
{
printf("请依次输入第%d个学生的学号、姓名、以及三门学科的成绩（均以逗号间隔）\n",i+1);
scanf("%d,%s,%f,%f,%f",&stu[i].num,&stu[i].name,&stu[i].score[0],&stu[i].score[1],&stu[i].score[2]);
}
print(stu);
}
void print(struct student stu[5])
{
int i,j;
for(i=0;i<5;i++)
{
printf("%d,%s\n",stu[i].num,stu[i].name);
for(j=0;j<3;j++)
printf("%.2f\n",stu[i].score[j]);
printf("\n");
}
}
1.4.c
H:\C语言\作业\第十一章作业\11.4.c(7) : error C2236: unexpected 'struct' 'student'
H:\C语言\作业\第十一章作业\11.4.c(21) : warning C4028: formal parameter 1 different from declaration
H:\C语言\作业\第十一章作业\11.4.c(25) : error C2036: 'struct student *' : unknown size
H:\C语言\作业\第十一章作业\11.4.c(25) : error C2037: left of 'num' specifies undefined struct/union 'student'
H:\C语言\作业\第十一章作业\11.4.c(25) : error C2036: 'struct student *' : unknown size
H:\C语言\作业\第十一章作业\11.4.c(25) : error C2037: left of 'name' specifies undefined struct/union 'student'
H:\C语言\作业\第十一章作业\11.4.c(27) : error C2036: 'struct student *' : unknown size
H:\C语言\作业\第十一章作业\11.4.c(27) : error C2037: left of 'score' specifies undefined struct/union 'student'
Error executing cl.exe.
11.4.obj - 7 error(s), 1 warning(s)

Answer 1

少了结果体student的定义

Answer 2

struct score//这一句是干什么的？