本人新手，有程序请教一下各位高人
程序是这样的，做的是一个学生成绩管理系统，不知道为什么，总是在插入的时候不能读入学生的名字，请高人指点一下，下面是代码#include<stdio.h>
#include<stdlib.h>
#include<string.h>
#include<conio.h>
void read_func(void);
void insert_func(void);
void write_func(void);
void sort_func(void);
void delete_func(void);
void display_func(void);
void modify_func(void);
void anykey_func(void);
struct student
{
char name[20];
int score;
struct student *next;
};
struct student *ptr,*head,*current,*prev;
int main(void)
{
char option1;
system("cls");
read_func();
while(1)
{
printf("********************\n");
printf(" 1.insert\n");
printf(" 2.delete\n");
printf(" 3.display\n");
printf(" 4.modify\n");
printf(" 5.quit\n");
printf("*********************\n");
printf(" Please enter your choice(1-5)...");
option1=getche();
printf("\n");
switch(option1)
{
case'1':
insert_func();
break;
case'2':
delete_func();
break;
case'3':
display_func();
break;
case'4':
modify_func();
break;
case'5':
write_func();
exit(0);
}
}
}
void read_func(void)
{
FILE *fptr;
head=(struct student *)malloc(sizeof(struct student));
head->next=NULL;
if((fptr=fopen("xscj.txt","r"))==NULL)
{
printf("Data file not exist\n");
printf("Press any to edit first record...\n");
getch();
insert_func();
}
else
{
ptr=(struct student *)malloc(sizeof(struct student));
while(fscanf(fptr,"%s%d",ptr->name,&ptr->score)!=EOF)
{
sort_func();
ptr=(struct student *)malloc(sizeof(struct student));
}
fclose(fptr);
}
}
void write_func(void)
{
FILE *fptr;
fptr=fopen("xscj.txt","w");
current=head->next;
while(current!=NULL)
{
fprintf(fptr,"%s%d\n",current->name,current->score);
current=current->next;
}
fclose(fptr);
}
void insert_func(void)
{
char s_temp[4];
ptr=(struct student *)malloc(sizeof(struct student));
printf("Student name:");
getche();
gets(ptr->name);
printf("Student score:");
scanf("%d",&ptr->score);
sort_func();
}
void sort_func(void)
{
prev=head;
current=head->next;
while((current!=NULL)&&(current->score>ptr->score))
{
prev=current;
current=current->next;
}
ptr->next=current;
prev->next=ptr;
}
void delete_func(void)
{
char del_name[20];
printf("Delete student name:");
gets(del_name);
prev=head;
current=head->next;
while((current!=NULL)&&(strcmp(current->name,del_name)!=0))
{
prev=current;
current=current->next;
}
if(current!=NULL)
{
prev->next=current->next;
free(current);
printf("%s student record deleted\n",del_name);
}
else
printf("Student %s not found\n",del_name);
anykey_func();
}
void modify_func(void)
{
char n_temp[20],s_temp[4];
printf("Modify student name:");
gets(n_temp);
current=head->next;
while((current!=NULL)&&(strcmp(current->name,n_temp)!=0))
{
prev=current;
current=current->next;
}
if(current!=NULL)
{
printf("*******************\n");
printf("Student name:%s\n",current->name);
printf("Student score:%d\n",current->score);
printf("*******************\n");
printf("Please enter new score:");
scanf("%d",¤t->score);
printf("%s student record modify\n",n_temp);
}
else
printf("Student %s not found\n",n_temp);
anykey_func();
}
void display_func(void)
{
int count=0;
system("cls");
if(head->next==NULL)
{
printf("No student record\n");
}
else
{
printf("NAME SCORE\n");
printf("-----------------------\n");
current=head->next;
while(current!=NULL)
{
printf("%-20s %3d\n",current->name,current->score);
count++;
current=current->next;
if(count%20==0) getch();
}
printf("----------------------------\n");
printf("Total %d record(s) found\n",count);
}
anykey_func();
}
void anykey_func(void)
{
printf("Press any key to continue...");
getch();
printf("\n");
}
程序代码：
