Student *
StudentList::add_student( char name[])
{
add_student(name,0,UND);
return s_root; //Always return the address of the root of the list
}
int main(void)
{
int choice;
if(file2mem() == FAIL){
printf("信息文件读取出错\n");
return 1;
}
while(1){
print_choice();
scanf("%d",&choice);
switch(choice){
case ADD:
add_student();break;
case DEL:
delete_student();break;
case CGE:
change_student();break;
case F_NAME:
find_name();break;
case F_NUM:
find_number();break;
case SORT:
sort_score();break;
case PRT:
print_student();break;
case EXIT:
return 0;
}
getchar();
printf("请按任意继续\n");
getchar();
}
}
int main(void) {
struct student students[MAX_STUDENT] = {{0}};
struct student *std;
while ((std = read_student()) != NULL) {
add_student(students,std);
}
print_student(students);
printf("\nClass AVG.:\t%f\n", class_average(students));
}
void readStudent(student_node *studentList, char *s)
{
int student_number;
char *student_name = malloc(sizeof(char)*limit);
if (sscanf(s, "S %d %s", &student_number, student_name) > 0)
{
student *newStudent = create_student(student_number, student_name);
add_student(studentList, newStudent);
}
}
void get_courses_for_student_recursive(enrollment_node *enrollmentList, course *myCourse, student_node *myStudentList)
{
if (enrollmentList != NULL)
{
if (enrollmentList->current != NULL)
{
if (enrollmentList->current->e_course->course_number == myCourse->course_number)
{
add_student(myStudentList, enrollmentList->current->e_student);
}
}
}
if (enrollmentList->next != NULL)
{
get_courses_for_student_recursive(enrollmentList->next, myCourse, myStudentList);
}
}
StudentList::StudentList(char name[], long ID, Major m)
{
s_root = NULL;
CurrentEntry=NULL;
CurrentEntry=add_student(name, ID, m);
}
StudentList::StudentList(char name[])
{
s_root = NULL;
CurrentEntry=NULL;
CurrentEntry=add_student(name);
}
int main(void)
{
int rval;
avro_file_reader_t dbreader;
avro_file_writer_t db;
avro_schema_t extraction_schema, name_schema,
phone_schema;
int64_t i;
const char *dbname = "student.db";
init();
/*如果student.db存在，则删除*/
unlink(dbname);
/*创建数据库文件*/
rval = avro_file_writer_create(dbname, student_schema, &db);
if (rval) {
fprintf(stderr, "Failed to create %s\n", dbname);
exit(EXIT_FAILURE);
}
/*向数据库文件中添加学生信息*/
add_student(db, "Zhanghua", "Law", "15201161111", 25);
add_student(db, "Lili", "Economy", "15201162222", 24);
add_student(db,"Wangyu","Information","15201163333", 25);
add_student(db, "Zhaoxin", "Art", "15201164444", 23);
add_student(db, "Sunqin", "Physics", "15201165555", 25);
add_student(db, "Zhouping", "Math", "15201166666", 23);
avro_file_writer_close(db);
fprintf(stdout, "\nPrint all the records from database\n");
/*读取并输出所有的学生信息*/
avro_file_reader(dbname, &dbreader);
for (i = 0; i < id; i++) {
if (show_student(dbreader, NULL)) {
fprintf(stderr, "Error printing student\n");
exit(EXIT_FAILURE);
}
}
avro_file_reader_close(dbreader);
/*输出学生的姓名和电话信息*/
extraction_schema = avro_schema_record("Student", NULL);
name_schema = avro_schema_string();
phone_schema = avro_schema_string();
avro_schema_record_field_append(extraction_schema,
"Name", name_schema);
avro_schema_record_field_append(extraction_schema, "Phone", phone_schema);
/*只读取每个学生的姓名和电话*/
fprintf(stdout,
"\n\nExtract Name & Phone of the records from database\n");
avro_file_reader(dbname, &dbreader);
for (i = 0; i < id; i++) {
if (show_student(dbreader, extraction_schema)) {
fprintf(stderr, "Error printing student\n");
exit(EXIT_FAILURE);
}
}
avro_file_reader_close(dbreader);
avro_schema_decref(name_schema);
avro_schema_decref(phone_schema);
avro_schema_decref(extraction_schema);
/*最后释放学生模式*/
avro_schema_decref(student_schema);
return 0;
}
void add_student_to_database(database *myDatabase, int student_number, char* student_name)
{
student *newStudent = create_student(student_number, student_name);
add_student(myDatabase->studentList, newStudent);
}
